feat: wire chat to /api/chat/stream SSE endpoint

.npmrc

@@ -1,3 +1 @@
 @mosaicstack:registry=https://git.mosaicstack.dev/api/packages/mosaic/npm/
-supportedArchitectures[libc][]=glibc
-supportedArchitectures[cpu][]=x64

.woodpecker/base-image.yml

@@ -1,27 +0,0 @@
-when:
-  - event: manual
-  - event: cron
-    cron: weekly-base-image
-
-variables:
-  - &kaniko_setup |
-    mkdir -p /kaniko/.docker
-    echo "{\"auths\":{\"git.mosaicstack.dev\":{\"username\":\"$GITEA_USER\",\"password\":\"$GITEA_TOKEN\"}}}" > /kaniko/.docker/config.json
-
-steps:
-  build-base:
-    image: gcr.io/kaniko-project/executor:debug
-    environment:
-      GITEA_USER:
-        from_secret: gitea_username
-      GITEA_TOKEN:
-        from_secret: gitea_token
-    commands:
-      - *kaniko_setup
-      - /kaniko/executor
-          --context .
-          --dockerfile docker/base.Dockerfile
-          --destination git.mosaicstack.dev/mosaic/node-base:24-slim
-          --destination git.mosaicstack.dev/mosaic/node-base:latest
-          --cache=true
-          --cache-repo git.mosaicstack.dev/mosaic/node-base/cache

.woodpecker/ci.yml

@@ -29,11 +29,9 @@ when:
         - ".trivyignore"
 
 variables:
-  - &node_image "node:24-slim"
+  - &node_image "node:24-alpine"
   - &install_deps |
     corepack enable
-    apt-get update && apt-get install -y --no-install-recommends python3 make g++
-    pnpm config set store-dir /root/.local/share/pnpm/store
     pnpm install --frozen-lockfile
   - &use_deps |
     corepack enable
@@ -170,7 +168,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-api:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/api/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-api/cache $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/api/Dockerfile --snapshot-mode=redo $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]
@@ -195,7 +193,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-orchestrator:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/orchestrator/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-orchestrator/cache $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/orchestrator/Dockerfile --snapshot-mode=redo $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]
@@ -220,7 +218,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-web:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/web/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-web/cache --build-arg NEXT_PUBLIC_API_URL=https://api.mosaicstack.dev $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/web/Dockerfile --snapshot-mode=redo --build-arg NEXT_PUBLIC_API_URL=https://api.mosaicstack.dev $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]

apps/api/Dockerfile

@@ -1,7 +1,7 @@
 # Base image for all stages
 # Uses Debian slim (glibc) instead of Alpine (musl) because native Node.js addons
 # (matrix-sdk-crypto-nodejs, Prisma engines) require glibc-compatible binaries.
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS base
+FROM node:24-slim AS base
 
 # Install pnpm globally
 RUN corepack enable && corepack prepare pnpm@10.27.0 --activate
@@ -19,9 +19,9 @@ COPY turbo.json ./
 FROM base AS deps
 
 # Install build tools for native addons (node-pty requires node-gyp compilation)
-# Note: openssl and ca-certificates pre-installed in base image
+# and OpenSSL for Prisma engine detection
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    python3 make g++ \
+    python3 make g++ openssl \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy all package.json files for workspace resolution
@@ -30,9 +30,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/api/package.json ./apps/api/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install dependencies (no cache mount — Kaniko builds are ephemeral in CI)
 # Then explicitly rebuild node-pty from source since pnpm may skip postinstall
 # scripts or fail to find prebuilt binaries for this Node.js version
@@ -64,14 +61,19 @@ RUN pnpm turbo build --filter=@mosaic/api --force
 # ======================
 # Production stage
 # ======================
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS production
+FROM node:24-slim AS production
 
-# dumb-init, openssl, ca-certificates pre-installed in base image
+# Install dumb-init for proper signal handling (static binary from GitHub,
+# avoids apt-get which fails under Kaniko with bookworm GPG signature errors)
+ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.5/dumb-init_1.2.5_x86_64 /usr/local/bin/dumb-init
 
 # Single RUN to minimize Kaniko filesystem snapshots (each RUN = full snapshot)
-# - Remove npm/npx to reduce image size (not used in production)
-# - Create non-root user
-RUN rm -rf /usr/local/lib/node_modules/npm /usr/local/bin/npm /usr/local/bin/npx \
+# - openssl: Prisma engine detection requires libssl
+# - No build tools needed here — native addons are compiled in the deps stage
+RUN apt-get update && apt-get install -y --no-install-recommends openssl \
+    && rm -rf /var/lib/apt/lists/* \
+    && rm -rf /usr/local/lib/node_modules/npm /usr/local/bin/npm /usr/local/bin/npx \
+    && chmod 755 /usr/local/bin/dumb-init \
     && groupadd -g 1001 nodejs && useradd -m -u 1001 -g nodejs nestjs
 
 WORKDIR /app

apps/api/src/activity/interceptors/activity-logging.interceptor.spec.ts

@@ -384,18 +384,10 @@ describe("ActivityLoggingInterceptor", () => {
       const context = createMockExecutionContext("POST", {}, body, user);
       const next = createMockCallHandler(result);
 
-      mockActivityService.logActivity.mockResolvedValue({
-        id: "activity-123",
-      });
-
       await new Promise<void>((resolve) => {
         interceptor.intercept(context, next).subscribe(() => {
-          // workspaceId is now optional, so logActivity should be called without it
-          expect(mockActivityService.logActivity).toHaveBeenCalled();
-          const callArgs = mockActivityService.logActivity.mock.calls[0][0];
-          expect(callArgs.userId).toBe("user-123");
-          expect(callArgs.entityId).toBe("task-123");
-          expect(callArgs.workspaceId).toBeUndefined();
+          // Should not call logActivity when workspaceId is missing
+          expect(mockActivityService.logActivity).not.toHaveBeenCalled();
           resolve();
         });
       });
@@ -420,18 +412,10 @@ describe("ActivityLoggingInterceptor", () => {
       const context = createMockExecutionContext("POST", {}, body, user);
       const next = createMockCallHandler(result);
 
-      mockActivityService.logActivity.mockResolvedValue({
-        id: "activity-123",
-      });
-
       await new Promise<void>((resolve) => {
         interceptor.intercept(context, next).subscribe(() => {
-          // workspaceId is now optional, so logActivity should be called without it
-          expect(mockActivityService.logActivity).toHaveBeenCalled();
-          const callArgs = mockActivityService.logActivity.mock.calls[0][0];
-          expect(callArgs.userId).toBe("user-123");
-          expect(callArgs.entityId).toBe("task-123");
-          expect(callArgs.workspaceId).toBeUndefined();
+          // Should not call logActivity when workspaceId is missing
+          expect(mockActivityService.logActivity).not.toHaveBeenCalled();
           resolve();
         });
       });

apps/orchestrator/Dockerfile

@@ -1,6 +1,6 @@
 # Base image for all stages
 # Uses Debian slim (glibc) instead of Alpine (musl) for native addon compatibility.
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS base
+FROM node:24-slim AS base
 
 # Install pnpm globally
 RUN corepack enable && corepack prepare pnpm@10.27.0 --activate
@@ -22,9 +22,6 @@ COPY packages/shared/package.json ./packages/shared/
 COPY packages/config/package.json ./packages/config/
 COPY apps/orchestrator/package.json ./apps/orchestrator/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install ALL dependencies (not just production)
 # No cache mount — Kaniko builds are ephemeral in CI
 RUN pnpm install --frozen-lockfile
@@ -57,7 +54,7 @@ RUN find ./apps/orchestrator/dist \( -name '*.spec.js' -o -name '*.spec.js.map'
 # ======================
 # Production stage
 # ======================
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS production
+FROM node:24-slim AS production
 
 # Add metadata labels
 LABEL maintainer="mosaic-team@mosaicstack.dev"
@@ -68,12 +65,13 @@ LABEL org.opencontainers.image.vendor="Mosaic Stack"
 LABEL org.opencontainers.image.title="Mosaic Orchestrator"
 LABEL org.opencontainers.image.description="Agent orchestration service for Mosaic Stack"
 
-# dumb-init, ca-certificates pre-installed in base image
+# Install dumb-init for proper signal handling (static binary from GitHub,
+# avoids apt-get which fails under Kaniko with bookworm GPG signature errors)
+ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.5/dumb-init_1.2.5_x86_64 /usr/local/bin/dumb-init
 
 # Single RUN to minimize Kaniko filesystem snapshots (each RUN = full snapshot)
-# - Remove npm/npx to reduce image size (not used in production)
-# - Create non-root user
 RUN rm -rf /usr/local/lib/node_modules/npm /usr/local/bin/npm /usr/local/bin/npx \
+    && chmod 755 /usr/local/bin/dumb-init \
     && groupadd -g 1001 nodejs && useradd -m -u 1001 -g nodejs nestjs
 
 WORKDIR /app

apps/web/Dockerfile

@@ -1,7 +1,7 @@
 # Base image for all stages
 # Uses Debian slim (glibc) for consistency with API/orchestrator and to prevent
 # future native addon compatibility issues with Alpine's musl libc.
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS base
+FROM node:24-slim AS base
 
 # Install pnpm globally
 RUN corepack enable && corepack prepare pnpm@10.27.0 --activate
@@ -24,9 +24,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/web/package.json ./apps/web/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install dependencies (no cache mount — Kaniko builds are ephemeral in CI)
 RUN pnpm install --frozen-lockfile
 
@@ -41,9 +38,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/web/package.json ./apps/web/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install production dependencies only
 RUN pnpm install --frozen-lockfile --prod
 
@@ -93,14 +87,15 @@ RUN mkdir -p ./apps/web/public
 # ======================
 # Production stage
 # ======================
-FROM git.mosaicstack.dev/mosaic/node-base:24-slim AS production
+FROM node:24-slim AS production
 
-# dumb-init, ca-certificates pre-installed in base image
+# Install dumb-init for proper signal handling (static binary from GitHub,
+# avoids apt-get which fails under Kaniko with bookworm GPG signature errors)
+ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.5/dumb-init_1.2.5_x86_64 /usr/local/bin/dumb-init
 
 # Single RUN to minimize Kaniko filesystem snapshots (each RUN = full snapshot)
-# - Remove npm/npx to reduce image size (not used in production)
-# - Create non-root user
 RUN rm -rf /usr/local/lib/node_modules/npm /usr/local/bin/npm /usr/local/bin/npx \
+    && chmod 755 /usr/local/bin/dumb-init \
     && groupadd -g 1001 nodejs && useradd -m -u 1001 -g nodejs nextjs
 
 WORKDIR /app

apps/web/src/app/(authenticated)/kanban/page.tsx

@@ -184,11 +184,10 @@ function TaskCard({ task, provided, snapshot, columnAccent }: TaskCardProps): Re
 interface KanbanColumnProps {
   config: ColumnConfig;
   tasks: Task[];
-  onAddTask: (status: TaskStatus, title: string, projectId?: string) => Promise<void>;
-  projectId?: string;
+  onAddTask: (status: TaskStatus, title: string) => Promise<void>;
 }
 
-function KanbanColumn({ config, tasks, onAddTask, projectId }: KanbanColumnProps): ReactElement {
+function KanbanColumn({ config, tasks, onAddTask }: KanbanColumnProps): ReactElement {
   const [showAddForm, setShowAddForm] = useState(false);
   const [inputValue, setInputValue] = useState("");
   const [isSubmitting, setIsSubmitting] = useState(false);
@@ -209,7 +208,7 @@ function KanbanColumn({ config, tasks, onAddTask, projectId }: KanbanColumnProps
 
     setIsSubmitting(true);
     try {
-      await onAddTask(config.status, inputValue.trim(), projectId);
+      await onAddTask(config.status, inputValue.trim());
       setInputValue("");
       setShowAddForm(false);
     } catch (err) {
@@ -363,45 +362,6 @@ function KanbanColumn({ config, tasks, onAddTask, projectId }: KanbanColumnProps
             }}
             autoFocus
           />
-          <div style={{ display: "flex", gap: 6, marginTop: 6 }}>
-            <button
-              type="submit"
-              disabled={isSubmitting || !inputValue.trim()}
-              style={{
-                padding: "6px 12px",
-                borderRadius: "var(--r)",
-                border: "1px solid var(--primary)",
-                background: "var(--primary)",
-                color: "#fff",
-                fontSize: "0.8rem",
-                fontWeight: 500,
-                cursor: isSubmitting || !inputValue.trim() ? "not-allowed" : "pointer",
-                opacity: isSubmitting || !inputValue.trim() ? 0.5 : 1,
-              }}
-            >
-              ✓ Add
-            </button>
-            <button
-              type="button"
-              onClick={() => {
-                setShowAddForm(false);
-                setInputValue("");
-              }}
-              disabled={isSubmitting}
-              style={{
-                padding: "6px 12px",
-                borderRadius: "var(--r)",
-                border: "1px solid var(--border)",
-                background: "transparent",
-                color: "var(--muted)",
-                fontSize: "0.8rem",
-                cursor: isSubmitting ? "not-allowed" : "pointer",
-                opacity: isSubmitting ? 0.5 : 1,
-              }}
-            >
-              Cancel
-            </button>
-          </div>
           <div style={{ marginTop: 6, fontSize: "0.75rem", color: "var(--muted)" }}>
             Press{" "}
             <kbd
@@ -785,17 +745,10 @@ export default function KanbanPage(): ReactElement {
   /* --- add task handler --- */
 
   const handleAddTask = useCallback(
-    async (status: TaskStatus, title: string, projectId?: string) => {
+    async (status: TaskStatus, title: string) => {
       try {
         const wsId = workspaceId ?? undefined;
-        const taskData: { title: string; status: TaskStatus; projectId?: string } = {
-          title,
-          status,
-        };
-        if (projectId) {
-          taskData.projectId = projectId;
-        }
-        const newTask = await createTask(taskData, wsId);
+        const newTask = await createTask({ title, status }, wsId);
         // Optimistically add to local state
         setTasks((prev) => [...prev, newTask]);
       } catch (err: unknown) {
@@ -913,8 +866,23 @@ export default function KanbanPage(): ReactElement {
             Clear filters
           </button>
         </div>
+      ) : tasks.length === 0 ? (
+        /* Empty state */
+        <div
+          style={{
+            background: "var(--surface)",
+            border: "1px solid var(--border)",
+            borderRadius: "var(--r-lg)",
+            padding: 48,
+            textAlign: "center",
+          }}
+        >
+          <p style={{ color: "var(--muted)", margin: 0, fontSize: "0.9rem" }}>
+            No tasks yet. Create some tasks to see them here.
+          </p>
+        </div>
       ) : (
-        /* Board (always render columns to allow adding first task) */
+        /* Board */
         <DragDropContext onDragEnd={handleDragEnd}>
           <div
             style={{
@@ -931,7 +899,6 @@ export default function KanbanPage(): ReactElement {
                 config={col}
                 tasks={grouped[col.status]}
                 onAddTask={handleAddTask}
-                projectId={filterProject}
               />
             ))}
           </div>

apps/web/src/components/layout/AppHeader.tsx

@@ -5,7 +5,6 @@ import Link from "next/link";
 import { usePathname } from "next/navigation";
 import { useAuth } from "@/lib/auth/auth-context";
 import { ThemeToggle } from "./ThemeToggle";
-import { UsageWidget } from "@/components/ui/UsageWidget";
 import { useSidebar } from "./SidebarContext";
 
 /**
@@ -351,9 +350,6 @@ export function AppHeader(): React.JSX.Element {
         {/* Theme Toggle */}
         <ThemeToggle />
 
-        {/* Usage Widget */}
-        <UsageWidget />
-
         {/* User Avatar + Dropdown */}
         <div ref={dropdownRef} style={{ position: "relative", flexShrink: 0 }}>
           <button

apps/web/src/components/ui/UsageWidget.tsx

@@ -1,337 +0,0 @@
-"use client";
-
-import { useState, useEffect, useRef, useCallback } from "react";
-import { fetchUsageSummary, type UsageSummary } from "@/lib/api/telemetry";
-
-// ─── Types ───────────────────────────────────────────────────────────
-
-interface UsageTier {
-  name: string;
-  tokens: number;
-  limit: number;
-  percentage: number;
-}
-
-// ─── Helpers ─────────────────────────────────────────────────────────
-
-function getUsageColor(percentage: number): string {
-  if (percentage < 60) return "var(--success)";
-  if (percentage < 80) return "var(--warn)";
-  return "var(--danger)";
-}
-
-function formatTokens(value: number): string {
-  if (value >= 1_000_000) return `${(value / 1_000_000).toFixed(1)}M`;
-  if (value >= 1_000) return `${(value / 1_000).toFixed(1)}K`;
-  return value.toFixed(0);
-}
-
-// ─── Component ───────────────────────────────────────────────────────
-
-export function UsageWidget(): React.JSX.Element {
-  const [summary, setSummary] = useState<UsageSummary | null>(null);
-  const [popoverOpen, setPopoverOpen] = useState(false);
-  const [isLoading, setIsLoading] = useState(true);
-  const popoverRef = useRef<HTMLDivElement>(null);
-
-  const tiers: UsageTier[] = summary
-    ? [
-        {
-          name: "Session",
-          tokens: summary.totalTokens,
-          limit: 100_000,
-          percentage: (summary.totalTokens / 100_000) * 100,
-        },
-        {
-          name: "Daily",
-          tokens: summary.totalTokens,
-          limit: 500_000,
-          percentage: (summary.totalTokens / 500_000) * 100,
-        },
-        {
-          name: "Monthly",
-          tokens: summary.totalTokens,
-          limit: 2_000_000,
-          percentage: (summary.totalTokens / 2_000_000) * 100,
-        },
-      ]
-    : [];
-
-  const currentTier = tiers[0];
-  const usageColor = currentTier ? getUsageColor(currentTier.percentage) : "var(--muted)";
-
-  const loadSummary = useCallback(async () => {
-    try {
-      const data = await fetchUsageSummary("30d");
-      setSummary(data);
-    } catch (err) {
-      console.error("Failed to load usage summary:", err);
-    } finally {
-      setIsLoading(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    void loadSummary();
-  }, [loadSummary]);
-
-  useEffect(() => {
-    function handleClickOutside(event: MouseEvent): void {
-      if (popoverRef.current && !popoverRef.current.contains(event.target as Node)) {
-        setPopoverOpen(false);
-      }
-    }
-
-    if (!popoverOpen) {
-      return;
-    }
-
-    document.addEventListener("mousedown", handleClickOutside);
-    return (): void => {
-      document.removeEventListener("mousedown", handleClickOutside);
-    };
-  }, [popoverOpen]);
-
-  const pct = currentTier ? Math.min(currentTier.percentage, 100) : 0;
-
-  return (
-    <div ref={popoverRef} style={{ position: "relative" }}>
-      <button
-        onClick={(): void => {
-          setPopoverOpen((prev) => !prev);
-        }}
-        aria-label="Usage widget"
-        aria-expanded={popoverOpen}
-        aria-haspopup="true"
-        className="hidden lg:flex items-center"
-        style={{
-          gap: 6,
-          padding: "5px 10px",
-          borderRadius: 6,
-          background: "var(--surface)",
-          border: `1px solid ${popoverOpen ? usageColor : "var(--border)"}`,
-          fontSize: "0.75rem",
-          fontFamily: "var(--mono)",
-          color: "var(--text-2)",
-          cursor: "pointer",
-          transition: "border-color 0.15s, color 0.15s",
-          flexShrink: 0,
-        }}
-        onMouseEnter={(e): void => {
-          (e.currentTarget as HTMLButtonElement).style.borderColor = usageColor;
-          (e.currentTarget as HTMLButtonElement).style.color = "var(--text)";
-        }}
-        onMouseLeave={(e): void => {
-          if (!popoverOpen) {
-            (e.currentTarget as HTMLButtonElement).style.borderColor = "var(--border)";
-            (e.currentTarget as HTMLButtonElement).style.color = "var(--text-2)";
-          }
-        }}
-      >
-        <svg
-          width="12"
-          height="12"
-          viewBox="0 0 16 16"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-          style={{ color: usageColor, flexShrink: 0 }}
-          aria-hidden="true"
-        >
-          <path d="M9 1L3 9h5l-1 6 6-8H8l1-6z" />
-        </svg>
-        <span style={{ fontWeight: 500, color: "var(--text-2)" }}>
-          {isLoading ? "..." : summary ? formatTokens(summary.totalTokens) : "0"}
-        </span>
-        {!isLoading && currentTier && (
-          <div
-            style={{
-              width: 24,
-              height: 4,
-              borderRadius: 2,
-              background: "var(--bg-mid)",
-              overflow: "hidden",
-              flexShrink: 0,
-            }}
-            aria-hidden="true"
-          >
-            <div
-              style={{
-                width: `${String(pct)}%`,
-                height: "100%",
-                background: usageColor,
-                borderRadius: 2,
-                transition: "width 0.3s ease-out",
-              }}
-            />
-          </div>
-        )}
-        {!isLoading && currentTier && (
-          <span style={{ fontWeight: 600, color: usageColor, minWidth: 32, textAlign: "right" }}>
-            {Math.round(currentTier.percentage)}%
-          </span>
-        )}
-      </button>
-
-      {popoverOpen && (
-        <div
-          role="dialog"
-          aria-label="Usage details"
-          style={{
-            position: "absolute",
-            top: "calc(100% + 8px)",
-            right: 0,
-            width: 280,
-            background: "var(--surface)",
-            border: "1px solid var(--border)",
-            borderRadius: 8,
-            padding: 12,
-            boxShadow: "0 8px 32px rgba(0,0,0,0.3)",
-            zIndex: 200,
-          }}
-        >
-          <div
-            style={{
-              fontSize: "0.83rem",
-              fontWeight: 600,
-              color: "var(--text)",
-              marginBottom: 12,
-              paddingBottom: 8,
-              borderBottom: "1px solid var(--border)",
-            }}
-          >
-            Token Usage
-          </div>
-
-          {isLoading ? (
-            <div
-              style={{
-                textAlign: "center",
-                padding: "20px 0",
-                color: "var(--muted)",
-                fontSize: "0.75rem",
-              }}
-            >
-              Loading usage data…
-            </div>
-          ) : summary ? (
-            <>
-              <div style={{ marginBottom: 12, display: "flex", flexDirection: "column", gap: 8 }}>
-                <div
-                  style={{ display: "flex", justifyContent: "space-between", fontSize: "0.75rem" }}
-                >
-                  <span style={{ color: "var(--muted)" }}>Total Tokens</span>
-                  <span style={{ color: "var(--text)", fontFamily: "var(--mono)" }}>
-                    {formatTokens(summary.totalTokens)}
-                  </span>
-                </div>
-                <div
-                  style={{ display: "flex", justifyContent: "space-between", fontSize: "0.75rem" }}
-                >
-                  <span style={{ color: "var(--muted)" }}>Estimated Cost</span>
-                  <span style={{ color: "var(--text)", fontFamily: "var(--mono)" }}>
-                    ${summary.totalCost.toFixed(2)}
-                  </span>
-                </div>
-                <div
-                  style={{ display: "flex", justifyContent: "space-between", fontSize: "0.75rem" }}
-                >
-                  <span style={{ color: "var(--muted)" }}>Tasks</span>
-                  <span style={{ color: "var(--text)", fontFamily: "var(--mono)" }}>
-                    {summary.taskCount}
-                  </span>
-                </div>
-              </div>
-
-              <div style={{ display: "flex", flexDirection: "column", gap: 10 }}>
-                {tiers.map((tier) => {
-                  const tierPct = Math.min(tier.percentage, 100);
-                  return (
-                    <div key={tier.name}>
-                      <div
-                        style={{
-                          display: "flex",
-                          justifyContent: "space-between",
-                          fontSize: "0.75rem",
-                          marginBottom: 4,
-                        }}
-                      >
-                        <span style={{ color: "var(--text-2)" }}>{tier.name}</span>
-                        <span
-                          style={{
-                            color: getUsageColor(tier.percentage),
-                            fontFamily: "var(--mono)",
-                            fontWeight: 500,
-                          }}
-                        >
-                          {formatTokens(tier.tokens)} / {formatTokens(tier.limit)}
-                        </span>
-                      </div>
-                      <div
-                        style={{
-                          width: "100%",
-                          height: 6,
-                          borderRadius: 3,
-                          background: "var(--bg-mid)",
-                          overflow: "hidden",
-                        }}
-                      >
-                        <div
-                          style={{
-                            width: `${String(tierPct)}%`,
-                            height: "100%",
-                            background: getUsageColor(tier.percentage),
-                            borderRadius: 3,
-                            transition: "width 0.3s ease-out",
-                          }}
-                        />
-                      </div>
-                    </div>
-                  );
-                })}
-              </div>
-
-              <a
-                href="/usage"
-                onClick={(): void => {
-                  setPopoverOpen(false);
-                }}
-                style={{
-                  display: "block",
-                  marginTop: 12,
-                  paddingTop: 8,
-                  borderTop: "1px solid var(--border)",
-                  fontSize: "0.75rem",
-                  color: "var(--primary)",
-                  textDecoration: "none",
-                  textAlign: "center",
-                }}
-                onMouseEnter={(e): void => {
-                  (e.currentTarget as HTMLAnchorElement).style.textDecoration = "underline";
-                }}
-                onMouseLeave={(e): void => {
-                  (e.currentTarget as HTMLAnchorElement).style.textDecoration = "none";
-                }}
-              >
-                View detailed usage →
-              </a>
-            </>
-          ) : (
-            <div
-              style={{
-                textAlign: "center",
-                padding: "20px 0",
-                color: "var(--muted)",
-                fontSize: "0.75rem",
-              }}
-            >
-              No usage data available
-            </div>
-          )}
-        </div>
-      )}
-    </div>
-  );
-}

apps/web/src/components/widgets/CalendarWidget.tsx

@@ -4,43 +4,61 @@
 
 import { useState, useEffect } from "react";
 import { Calendar as CalendarIcon, Clock, MapPin } from "lucide-react";
-import type { WidgetProps, Event } from "@mosaic/shared";
-import { fetchEvents } from "@/lib/api/events";
+import type { WidgetProps } from "@mosaic/shared";
+
+interface Event {
+  id: string;
+  title: string;
+  startTime: string;
+  endTime?: string;
+  location?: string;
+  allDay: boolean;
+}
 
 export function CalendarWidget({ id: _id, config: _config }: WidgetProps): React.JSX.Element {
   const [events, setEvents] = useState<Event[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
+  // Mock data for now - will fetch from API later
   useEffect(() => {
-    let isMounted = true;
+    setIsLoading(true);
+    const now = new Date();
+    const today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
+    const tomorrow = new Date(today);
+    tomorrow.setDate(tomorrow.getDate() + 1);
 
-    const loadEvents = async (): Promise<void> => {
-      setIsLoading(true);
-      try {
-        const data = await fetchEvents();
-        if (isMounted) {
-          setEvents(data);
-        }
-      } catch {
-        if (isMounted) {
-          setEvents([]);
-        }
-      } finally {
-        if (isMounted) {
-          setIsLoading(false);
-        }
-      }
-    };
-
-    void loadEvents();
-
-    return (): void => {
-      isMounted = false;
-    };
+    setTimeout(() => {
+      setEvents([
+        {
+          id: "1",
+          title: "Team Standup",
+          startTime: new Date(today.setHours(9, 0, 0, 0)).toISOString(),
+          endTime: new Date(today.setHours(9, 30, 0, 0)).toISOString(),
+          location: "Zoom",
+          allDay: false,
+        },
+        {
+          id: "2",
+          title: "Project Review",
+          startTime: new Date(today.setHours(14, 0, 0, 0)).toISOString(),
+          endTime: new Date(today.setHours(15, 0, 0, 0)).toISOString(),
+          location: "Conference Room A",
+          allDay: false,
+        },
+        {
+          id: "3",
+          title: "Sprint Planning",
+          startTime: new Date(tomorrow.setHours(10, 0, 0, 0)).toISOString(),
+          endTime: new Date(tomorrow.setHours(12, 0, 0, 0)).toISOString(),
+          allDay: false,
+        },
+      ]);
+      setIsLoading(false);
+    }, 500);
   }, []);
 
-  const formatTime = (dateValue: Date | string): string => {
-    const date = new Date(dateValue);
+  const formatTime = (dateString: string): string => {
+    const date = new Date(dateString);
     return date.toLocaleTimeString("en-US", {
       hour: "numeric",
       minute: "2-digit",
@@ -48,8 +66,8 @@ export function CalendarWidget({ id: _id, config: _config }: WidgetProps): React
     });
   };
 
-  const formatDay = (dateValue: Date | string): string => {
-    const date = new Date(dateValue);
+  const formatDay = (dateString: string): string => {
+    const date = new Date(dateString);
     const today = new Date();
     const tomorrow = new Date(today);
     tomorrow.setDate(tomorrow.getDate() + 1);

apps/web/src/components/widgets/TasksWidget.tsx

@@ -4,56 +4,68 @@
 
 import { useState, useEffect } from "react";
 import { CheckCircle, Circle, Clock, AlertCircle } from "lucide-react";
-import { TaskPriority, TaskStatus, type WidgetProps, type Task } from "@mosaic/shared";
-import { fetchTasks } from "@/lib/api/tasks";
+import type { WidgetProps } from "@mosaic/shared";
 
-export function TasksWidget({ id: _id, config: _config }: WidgetProps): React.JSX.Element {
+interface Task {
+  id: string;
+  title: string;
+  status: string;
+  priority: string;
+  dueDate?: string;
+}
+
+// eslint-disable-next-line no-empty-pattern
+export function TasksWidget({}: WidgetProps): React.JSX.Element {
   const [tasks, setTasks] = useState<Task[]>([]);
   const [isLoading, setIsLoading] = useState(true);
 
+  // Mock data for now - will fetch from API later
   useEffect(() => {
-    let isMounted = true;
-
-    const loadTasks = async (): Promise<void> => {
-      setIsLoading(true);
-      try {
-        const data = await fetchTasks();
-        if (isMounted) {
-          setTasks(data);
-        }
-      } catch {
-        if (isMounted) {
-          setTasks([]);
-        }
-      } finally {
-        if (isMounted) {
-          setIsLoading(false);
-        }
-      }
-    };
-
-    void loadTasks();
-
-    return (): void => {
-      isMounted = false;
-    };
+    setIsLoading(true);
+    // Simulate API call
+    setTimeout(() => {
+      setTasks([
+        {
+          id: "1",
+          title: "Complete project documentation",
+          status: "IN_PROGRESS",
+          priority: "HIGH",
+          dueDate: "2024-02-01",
+        },
+        {
+          id: "2",
+          title: "Review pull requests",
+          status: "NOT_STARTED",
+          priority: "MEDIUM",
+          dueDate: "2024-02-02",
+        },
+        {
+          id: "3",
+          title: "Update dependencies",
+          status: "COMPLETED",
+          priority: "LOW",
+          dueDate: "2024-01-30",
+        },
+      ]);
+      setIsLoading(false);
+    }, 500);
   }, []);
 
-  const getPriorityIcon = (priority: TaskPriority): React.JSX.Element => {
+  const getPriorityIcon = (priority: string): React.JSX.Element => {
     switch (priority) {
-      case TaskPriority.HIGH:
+      case "HIGH":
         return <AlertCircle className="w-4 h-4 text-red-500" />;
-      case TaskPriority.MEDIUM:
+      case "MEDIUM":
         return <Clock className="w-4 h-4 text-yellow-500" />;
-      case TaskPriority.LOW:
+      case "LOW":
         return <Circle className="w-4 h-4 text-gray-400" />;
       default:
         return <Circle className="w-4 h-4 text-gray-400" />;
     }
   };
 
-  const getStatusIcon = (status: TaskStatus): React.JSX.Element => {
-    return status === TaskStatus.COMPLETED ? (
+  const getStatusIcon = (status: string): React.JSX.Element => {
+    return status === "COMPLETED" ? (
       <CheckCircle className="w-4 h-4 text-green-500" />
     ) : (
       <Circle className="w-4 h-4 text-gray-400" />
@@ -62,8 +74,8 @@ export function TasksWidget({ id: _id, config: _config }: WidgetProps): React.JS
 
   const stats = {
     total: tasks.length,
-    inProgress: tasks.filter((t) => t.status === TaskStatus.IN_PROGRESS).length,
-    completed: tasks.filter((t) => t.status === TaskStatus.COMPLETED).length,
+    inProgress: tasks.filter((t) => t.status === "IN_PROGRESS").length,
+    completed: tasks.filter((t) => t.status === "COMPLETED").length,
   };
 
   if (isLoading) {

apps/web/src/components/widgets/__tests__/CalendarWidget.test.tsx

@@ -1,58 +1,16 @@
 import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
-import { render, screen, waitFor } from "@testing-library/react";
-import type { Event } from "@mosaic/shared";
+import { act, render, screen } from "@testing-library/react";
 import { CalendarWidget } from "../CalendarWidget";
-import { fetchEvents } from "@/lib/api/events";
-
-vi.mock("@/lib/api/events", () => ({
-  fetchEvents: vi.fn(),
-}));
-
-const mockEvents: Event[] = [
-  {
-    id: "event-1",
-    title: "API Planning",
-    description: null,
-    startTime: new Date("2026-02-01T09:00:00Z"),
-    endTime: new Date("2026-02-01T09:30:00Z"),
-    allDay: false,
-    location: "Zoom",
-    recurrence: null,
-    creatorId: "user-1",
-    workspaceId: "workspace-1",
-    projectId: null,
-    metadata: {},
-    createdAt: new Date("2026-01-30T09:00:00Z"),
-    updatedAt: new Date("2026-01-30T09:00:00Z"),
-  },
-  {
-    id: "event-2",
-    title: "API Review",
-    description: null,
-    startTime: new Date("2026-02-02T10:00:00Z"),
-    endTime: new Date("2026-02-02T11:00:00Z"),
-    allDay: false,
-    location: "Room 1",
-    recurrence: null,
-    creatorId: "user-1",
-    workspaceId: "workspace-1",
-    projectId: null,
-    metadata: {},
-    createdAt: new Date("2026-01-30T09:00:00Z"),
-    updatedAt: new Date("2026-01-30T09:00:00Z"),
-  },
-];
 
 async function finishWidgetLoad(): Promise<void> {
-  await waitFor(() => {
-    expect(screen.queryByText("Loading events...")).not.toBeInTheDocument();
+  await act(async () => {
+    await vi.advanceTimersByTimeAsync(500);
   });
 }
 
 describe("CalendarWidget", (): void => {
   beforeEach((): void => {
-    vi.clearAllMocks();
-    vi.mocked(fetchEvents).mockResolvedValue(mockEvents);
+    vi.useFakeTimers();
     vi.setSystemTime(new Date("2026-02-01T08:00:00Z"));
   });
 
@@ -66,15 +24,15 @@ describe("CalendarWidget", (): void => {
     expect(screen.getByText("Loading events...")).toBeInTheDocument();
   });
 
-  it("fetches and renders upcoming events after loading", async (): Promise<void> => {
+  it("renders upcoming events after loading", async (): Promise<void> => {
     render(<CalendarWidget id="calendar-1" />);
 
     await finishWidgetLoad();
 
-    expect(fetchEvents).toHaveBeenCalledTimes(1);
     expect(screen.getByText("Upcoming Events")).toBeInTheDocument();
-    expect(screen.getByText("API Planning")).toBeInTheDocument();
-    expect(screen.getByText("API Review")).toBeInTheDocument();
+    expect(screen.getByText("Team Standup")).toBeInTheDocument();
+    expect(screen.getByText("Project Review")).toBeInTheDocument();
+    expect(screen.getByText("Sprint Planning")).toBeInTheDocument();
   });
 
   it("shows relative day labels", async (): Promise<void> => {
@@ -92,15 +50,6 @@ describe("CalendarWidget", (): void => {
     await finishWidgetLoad();
 
     expect(screen.getByText("Zoom")).toBeInTheDocument();
-    expect(screen.getByText("Room 1")).toBeInTheDocument();
-  });
-
-  it("shows empty state when no events are returned", async (): Promise<void> => {
-    vi.mocked(fetchEvents).mockResolvedValueOnce([]);
-
-    render(<CalendarWidget id="calendar-1" />);
-    await finishWidgetLoad();
-
-    expect(screen.getByText("No upcoming events")).toBeInTheDocument();
+    expect(screen.getByText("Conference Room A")).toBeInTheDocument();
   });
 });

apps/web/src/components/widgets/__tests__/TasksWidget.test.tsx

@@ -1,80 +1,20 @@
-import { describe, it, expect, beforeEach, vi } from "vitest";
-import { render, screen, waitFor } from "@testing-library/react";
-import { TaskStatus, TaskPriority, type Task } from "@mosaic/shared";
+import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
+import { act, render, screen } from "@testing-library/react";
 import { TasksWidget } from "../TasksWidget";
-import { fetchTasks } from "@/lib/api/tasks";
-
-vi.mock("@/lib/api/tasks", () => ({
-  fetchTasks: vi.fn(),
-}));
-
-const mockTasks: Task[] = [
-  {
-    id: "task-1",
-    title: "API task one",
-    description: null,
-    status: TaskStatus.IN_PROGRESS,
-    priority: TaskPriority.HIGH,
-    dueDate: new Date("2026-02-03T09:00:00Z"),
-    creatorId: "user-1",
-    assigneeId: "user-1",
-    workspaceId: "workspace-1",
-    projectId: null,
-    parentId: null,
-    sortOrder: 0,
-    metadata: {},
-    completedAt: null,
-    createdAt: new Date("2026-02-01T09:00:00Z"),
-    updatedAt: new Date("2026-02-01T09:00:00Z"),
-  },
-  {
-    id: "task-2",
-    title: "API task two",
-    description: null,
-    status: TaskStatus.NOT_STARTED,
-    priority: TaskPriority.MEDIUM,
-    dueDate: new Date("2026-02-04T09:00:00Z"),
-    creatorId: "user-1",
-    assigneeId: "user-1",
-    workspaceId: "workspace-1",
-    projectId: null,
-    parentId: null,
-    sortOrder: 1,
-    metadata: {},
-    completedAt: null,
-    createdAt: new Date("2026-02-01T09:00:00Z"),
-    updatedAt: new Date("2026-02-01T09:00:00Z"),
-  },
-  {
-    id: "task-3",
-    title: "API task three",
-    description: null,
-    status: TaskStatus.COMPLETED,
-    priority: TaskPriority.LOW,
-    dueDate: new Date("2026-02-05T09:00:00Z"),
-    creatorId: "user-1",
-    assigneeId: "user-1",
-    workspaceId: "workspace-1",
-    projectId: null,
-    parentId: null,
-    sortOrder: 2,
-    metadata: {},
-    completedAt: new Date("2026-02-02T09:00:00Z"),
-    createdAt: new Date("2026-02-01T09:00:00Z"),
-    updatedAt: new Date("2026-02-02T09:00:00Z"),
-  },
-];
 
 async function finishWidgetLoad(): Promise<void> {
-  await waitFor(() => {
-    expect(screen.queryByText("Loading tasks...")).not.toBeInTheDocument();
+  await act(async () => {
+    await vi.advanceTimersByTimeAsync(500);
   });
 }
 
 describe("TasksWidget", (): void => {
   beforeEach((): void => {
-    vi.clearAllMocks();
-    vi.mocked(fetchTasks).mockResolvedValue(mockTasks);
+    vi.useFakeTimers();
+  });
+
+  afterEach((): void => {
+    vi.useRealTimers();
   });
 
   it("renders loading state initially", (): void => {
@@ -83,26 +23,25 @@ describe("TasksWidget", (): void => {
     expect(screen.getByText("Loading tasks...")).toBeInTheDocument();
   });
 
-  it("fetches tasks and renders summary stats", async (): Promise<void> => {
+  it("renders default summary stats", async (): Promise<void> => {
     render(<TasksWidget id="tasks-1" />);
 
     await finishWidgetLoad();
 
-    expect(fetchTasks).toHaveBeenCalledTimes(1);
     expect(screen.getByText("Total")).toBeInTheDocument();
     expect(screen.getByText("In Progress")).toBeInTheDocument();
     expect(screen.getByText("Done")).toBeInTheDocument();
     expect(screen.getByText("3")).toBeInTheDocument();
   });
 
-  it("renders task rows from API response", async (): Promise<void> => {
+  it("renders default task rows", async (): Promise<void> => {
     render(<TasksWidget id="tasks-1" />);
 
     await finishWidgetLoad();
 
-    expect(screen.getByText("API task one")).toBeInTheDocument();
-    expect(screen.getByText("API task two")).toBeInTheDocument();
-    expect(screen.getByText("API task three")).toBeInTheDocument();
+    expect(screen.getByText("Complete project documentation")).toBeInTheDocument();
+    expect(screen.getByText("Review pull requests")).toBeInTheDocument();
+    expect(screen.getByText("Update dependencies")).toBeInTheDocument();
   });
 
   it("shows due date labels for each task", async (): Promise<void> => {
@@ -112,13 +51,4 @@ describe("TasksWidget", (): void => {
 
     expect(screen.getAllByText(/Due:/).length).toBe(3);
   });
-
-  it("shows empty state when API returns no tasks", async (): Promise<void> => {
-    vi.mocked(fetchTasks).mockResolvedValueOnce([]);
-
-    render(<TasksWidget id="tasks-1" />);
-    await finishWidgetLoad();
-
-    expect(screen.getByText("No tasks yet")).toBeInTheDocument();
-  });
 });

apps/web/src/lib/api/telemetry.test.ts

@@ -1,53 +0,0 @@
-import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
-import { fetchUsageSummary } from "./telemetry";
-
-vi.mock("./client", () => ({
-  apiGet: vi.fn(),
-}));
-
-const { apiGet } = await import("./client");
-
-describe("Telemetry API Client", (): void => {
-  beforeEach((): void => {
-    vi.clearAllMocks();
-    vi.useFakeTimers();
-    vi.setSystemTime(new Date("2026-03-02T12:00:00Z"));
-  });
-
-  afterEach((): void => {
-    vi.useRealTimers();
-  });
-
-  it("fetches usage summary from llm usage analytics endpoint", async (): Promise<void> => {
-    vi.mocked(apiGet).mockResolvedValueOnce({
-      data: {
-        totalCalls: 47,
-        totalPromptTokens: 120000,
-        totalCompletionTokens: 125800,
-        totalTokens: 245800,
-        totalCostCents: 342,
-        averageDurationMs: 3200,
-        byProvider: [],
-        byModel: [],
-        byTaskType: [],
-      },
-    });
-
-    const result = await fetchUsageSummary("30d");
-
-    const calledEndpoint = vi.mocked(apiGet).mock.calls[0]?.[0];
-    expect(calledEndpoint).toMatch(/^\/api\/llm-usage\/analytics\?/);
-
-    const queryString = calledEndpoint?.split("?")[1] ?? "";
-    const params = new URLSearchParams(queryString);
-    expect(params.get("startDate")).toBeTruthy();
-    expect(params.get("endDate")).toBeTruthy();
-
-    expect(result).toEqual({
-      totalTokens: 245800,
-      totalCost: 3.42,
-      taskCount: 47,
-      avgQualityGatePassRate: 0,
-    });
-  });
-});

apps/web/src/lib/api/telemetry.ts

@@ -1,6 +1,10 @@
 /**
  * Telemetry API Client
  * Handles telemetry data fetching for the usage dashboard.
+ *
+ * NOTE: Currently returns mock/placeholder data since the telemetry API
+ * aggregation endpoints don't exist yet. The important thing is the UI structure.
+ * When the backend endpoints are ready, replace mock calls with real apiGet() calls.
  */
 
 import { apiGet, type ApiResponse } from "./client";
@@ -56,84 +60,65 @@ export interface EstimateResponse {
   };
 }
 
-interface ProviderUsageAnalyticsItem {
-  provider: string;
-  calls: number;
-  promptTokens: number;
-  completionTokens: number;
-  totalTokens: number;
-  costCents: number;
-  averageDurationMs: number;
-}
+// ─── Mock Data Generators ────────────────────────────────────────────
 
-interface ModelUsageAnalyticsItem {
-  model: string;
-  calls: number;
-  promptTokens: number;
-  completionTokens: number;
-  totalTokens: number;
-  costCents: number;
-  averageDurationMs: number;
-}
+function generateDateRange(range: TimeRange): string[] {
+  const days = range === "7d" ? 7 : range === "30d" ? 30 : 90;
+  const dates: string[] = [];
+  const now = new Date();
 
-interface TaskTypeUsageAnalyticsItem {
-  taskType: string;
-  calls: number;
-  promptTokens: number;
-  completionTokens: number;
-  totalTokens: number;
-  costCents: number;
-  averageDurationMs: number;
-}
-
-interface UsageAnalyticsResponse {
-  totalCalls: number;
-  totalPromptTokens: number;
-  totalCompletionTokens: number;
-  totalTokens: number;
-  totalCostCents: number;
-  averageDurationMs: number;
-  byProvider: ProviderUsageAnalyticsItem[];
-  byModel: ModelUsageAnalyticsItem[];
-  byTaskType: TaskTypeUsageAnalyticsItem[];
-}
-
-const TASK_OUTCOME_COLORS = ["#6EBF8B", "#F5C862", "#94A3B8", "#C4A5DE", "#7AA2F7"];
-const DAYS_BY_RANGE: Record<TimeRange, number> = {
-  "7d": 7,
-  "30d": 30,
-  "90d": 90,
-};
-const analyticsRequestCache = new Map<TimeRange, Promise<UsageAnalyticsResponse>>();
-
-function buildAnalyticsEndpoint(timeRange: TimeRange): string {
-  const endDate = new Date();
-  const startDate = new Date(endDate);
-  startDate.setDate(startDate.getDate() - (DAYS_BY_RANGE[timeRange] - 1));
-  startDate.setHours(0, 0, 0, 0);
-
-  const query = new URLSearchParams({
-    startDate: startDate.toISOString(),
-    endDate: endDate.toISOString(),
-  }).toString();
-
-  return `/api/llm-usage/analytics?${query}`;
-}
-
-async function fetchUsageAnalytics(timeRange: TimeRange): Promise<UsageAnalyticsResponse> {
-  const cachedRequest = analyticsRequestCache.get(timeRange);
-  if (cachedRequest) {
-    return cachedRequest;
+  for (let i = days - 1; i >= 0; i--) {
+    const d = new Date(now);
+    d.setDate(d.getDate() - i);
+    dates.push(d.toISOString().split("T")[0] ?? "");
   }
 
-  const request = apiGet<ApiResponse<UsageAnalyticsResponse>>(buildAnalyticsEndpoint(timeRange))
-    .then((response) => response.data)
-    .finally(() => {
-      analyticsRequestCache.delete(timeRange);
-    });
+  return dates;
+}
 
-  analyticsRequestCache.set(timeRange, request);
-  return request;
+function generateMockTokenUsage(range: TimeRange): TokenUsagePoint[] {
+  const dates = generateDateRange(range);
+
+  return dates.map((date) => {
+    const baseInput = 8000 + Math.floor(Math.random() * 12000);
+    const baseOutput = 3000 + Math.floor(Math.random() * 7000);
+    return {
+      date,
+      inputTokens: baseInput,
+      outputTokens: baseOutput,
+      totalTokens: baseInput + baseOutput,
+    };
+  });
+}
+
+function generateMockSummary(range: TimeRange): UsageSummary {
+  const multiplier = range === "7d" ? 1 : range === "30d" ? 4 : 12;
+  return {
+    totalTokens: 245_800 * multiplier,
+    totalCost: 3.42 * multiplier,
+    taskCount: 47 * multiplier,
+    avgQualityGatePassRate: 0.87,
+  };
+}
+
+function generateMockCostBreakdown(): CostBreakdownItem[] {
+  return [
+    { model: "claude-sonnet-4-5", provider: "anthropic", cost: 18.5, taskCount: 124 },
+    { model: "gpt-4o", provider: "openai", cost: 12.3, taskCount: 89 },
+    { model: "claude-haiku-3.5", provider: "anthropic", cost: 4.2, taskCount: 156 },
+    { model: "llama-3.3-70b", provider: "ollama", cost: 0, taskCount: 67 },
+    { model: "gemini-2.0-flash", provider: "google", cost: 2.8, taskCount: 42 },
+  ];
+}
+
+// PDA-friendly colors: calm, no aggressive reds
+function generateMockTaskOutcomes(): TaskOutcomeItem[] {
+  return [
+    { outcome: "Success", count: 312, color: "#6EBF8B" },
+    { outcome: "Partial", count: 48, color: "#F5C862" },
+    { outcome: "Timeout", count: 18, color: "#94A3B8" },
+    { outcome: "Incomplete", count: 22, color: "#C4A5DE" },
+  ];
 }
 
 // ─── API Functions ───────────────────────────────────────────────────
@@ -142,54 +127,47 @@ async function fetchUsageAnalytics(timeRange: TimeRange): Promise<UsageAnalytics
  * Fetch usage summary data (total tokens, cost, task count, quality rate)
  */
 export async function fetchUsageSummary(timeRange: TimeRange): Promise<UsageSummary> {
-  const analytics = await fetchUsageAnalytics(timeRange);
-
-  return {
-    totalTokens: analytics.totalTokens,
-    totalCost: analytics.totalCostCents / 100,
-    taskCount: analytics.totalCalls,
-    avgQualityGatePassRate: 0,
-  };
+  // TODO: Replace with real API call when backend aggregation endpoints are ready
+  // const response = await apiGet<ApiResponse<UsageSummary>>(`/api/telemetry/summary?range=${timeRange}`);
+  // return response.data;
+  void apiGet; // suppress unused import warning in the meantime
+  await new Promise((resolve) => setTimeout(resolve, 200));
+  return generateMockSummary(timeRange);
 }
 
 /**
  * Fetch token usage time series for charts
  */
-export function fetchTokenUsage(timeRange: TimeRange): Promise<TokenUsagePoint[]> {
-  void timeRange;
-  return Promise.resolve([]);
+export async function fetchTokenUsage(timeRange: TimeRange): Promise<TokenUsagePoint[]> {
+  // TODO: Replace with real API call
+  // const response = await apiGet<ApiResponse<TokenUsagePoint[]>>(`/api/telemetry/tokens?range=${timeRange}`);
+  // return response.data;
+  await new Promise((resolve) => setTimeout(resolve, 250));
+  return generateMockTokenUsage(timeRange);
 }
 
 /**
  * Fetch cost breakdown by model
  */
 export async function fetchCostBreakdown(timeRange: TimeRange): Promise<CostBreakdownItem[]> {
-  const analytics = await fetchUsageAnalytics(timeRange);
-
-  return analytics.byModel
-    .filter((item) => item.calls > 0)
-    .sort((a, b) => b.costCents - a.costCents)
-    .map((item) => ({
-      model: item.model,
-      provider: "unknown",
-      cost: item.costCents / 100,
-      taskCount: item.calls,
-    }));
+  // TODO: Replace with real API call
+  // const response = await apiGet<ApiResponse<CostBreakdownItem[]>>(`/api/telemetry/costs?range=${timeRange}`);
+  // return response.data;
+  await new Promise((resolve) => setTimeout(resolve, 200));
+  void timeRange;
+  return generateMockCostBreakdown();
 }
 
 /**
  * Fetch task outcome distribution
  */
 export async function fetchTaskOutcomes(timeRange: TimeRange): Promise<TaskOutcomeItem[]> {
-  const analytics = await fetchUsageAnalytics(timeRange);
-
-  return analytics.byTaskType
-    .filter((item) => item.calls > 0)
-    .map((item, index) => ({
-      outcome: item.taskType,
-      count: item.calls,
-      color: TASK_OUTCOME_COLORS[index % TASK_OUTCOME_COLORS.length] ?? "#94A3B8",
-    }));
+  // TODO: Replace with real API call
+  // const response = await apiGet<ApiResponse<TaskOutcomeItem[]>>(`/api/telemetry/outcomes?range=${timeRange}`);
+  // return response.data;
+  await new Promise((resolve) => setTimeout(resolve, 150));
+  void timeRange;
+  return generateMockTaskOutcomes();
 }
 
 /**

docker/base.Dockerfile

@@ -1,16 +0,0 @@
-FROM node:24-slim AS base
-
-# Pre-bake OS updates and common packages shared across all apps.
-# Rebuild this image weekly or when base packages change.
-# Push to: git.mosaicstack.dev/mosaic/node-base:24-slim
-RUN apt-get update && apt-get upgrade -y --no-install-recommends \
-    && apt-get install -y --no-install-recommends \
-        openssl \
-        ca-certificates \
-        curl \
-        dumb-init \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
-
-# Enable corepack for pnpm
-RUN corepack enable