feat: monorepo consolidation — forge pipeline, MACP protocol, framework plugin, profiles/guides/skills

Work packages completed:
- WP1: packages/forge — pipeline runner, stage adapter, board tasks, brief classifier,
  persona loader with project-level overrides. 89 tests, 95.62% coverage.
- WP2: packages/macp — credential resolver, gate runner, event emitter, protocol types.
  65 tests, 96.24% coverage. Full Python-to-TS port preserving all behavior.
- WP3: plugins/mosaic-framework — OC rails injection plugin (before_agent_start +
  subagent_spawning hooks for Mosaic contract enforcement).
- WP4: profiles/ (domains, tech-stacks, workflows), guides/ (17 docs),
  skills/ (5 universal skills), forge pipeline assets (48 markdown files).

Board deliberation: docs/reviews/consolidation-board-memo.md
Brief: briefs/monorepo-consolidation.md

Consolidates mosaic/stack (forge, MACP, bootstrap framework) into mosaic/mosaic-stack.
154 new tests total. Zero Python — all TypeScript/ESM.

packages/macp/src/schemas/task.schema.json

@@ -0,0 +1,123 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://mosaicstack.dev/schemas/orchestrator/task.schema.json",
+  "title": "Mosaic Orchestrator Task",
+  "type": "object",
+  "required": ["id", "title", "status"],
+  "properties": {
+    "id": {
+      "type": "string"
+    },
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "status": {
+      "type": "string",
+      "enum": ["pending", "running", "gated", "completed", "failed", "escalated"]
+    },
+    "type": {
+      "type": "string",
+      "enum": ["coding", "deploy", "research", "review", "documentation", "infrastructure"],
+      "description": "Task type - determines dispatch strategy and gate requirements"
+    },
+    "dispatch": {
+      "type": "string",
+      "enum": ["yolo", "acp", "exec"],
+      "description": "Execution backend: yolo=mosaic yolo (full system), acp=OpenClaw sessions_spawn (sandboxed), exec=direct shell"
+    },
+    "runtime": {
+      "type": "string",
+      "description": "Preferred worker runtime, e.g. codex, claude, opencode"
+    },
+    "worktree": {
+      "type": "string",
+      "description": "Path to git worktree for this task, e.g. ~/src/repo-worktrees/task-042"
+    },
+    "branch": {
+      "type": "string",
+      "description": "Git branch name for this task"
+    },
+    "brief_path": {
+      "type": "string",
+      "description": "Path to markdown task brief relative to repo root"
+    },
+    "result_path": {
+      "type": "string",
+      "description": "Path to JSON result file relative to .mosaic/orchestrator/"
+    },
+    "issue": {
+      "type": "string",
+      "description": "Issue reference (e.g. #42)"
+    },
+    "pr": {
+      "type": ["string", "null"],
+      "description": "PR number/URL once opened"
+    },
+    "depends_on": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "List of task IDs this task depends on"
+    },
+    "depends_on_policy": {
+      "type": "string",
+      "enum": ["all", "any", "all_terminal"],
+      "default": "all",
+      "description": "How to evaluate dependency satisfaction"
+    },
+    "max_attempts": {
+      "type": "integer",
+      "minimum": 1,
+      "default": 1
+    },
+    "attempts": {
+      "type": "integer",
+      "minimum": 0,
+      "default": 0
+    },
+    "timeout_seconds": {
+      "type": "integer",
+      "description": "Override default timeout for this task"
+    },
+    "command": {
+      "type": "string",
+      "description": "Worker command to execute for this task"
+    },
+    "quality_gates": {
+      "type": "array",
+      "items": {
+        "oneOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "object",
+            "properties": {
+              "command": {
+                "type": "string"
+              },
+              "type": {
+                "type": "string",
+                "enum": ["mechanical", "ai-review", "ci-pipeline"]
+              },
+              "fail_on": {
+                "type": "string",
+                "enum": ["blocker", "any"]
+              }
+            },
+            "required": ["command"],
+            "additionalProperties": true
+          }
+        ]
+      }
+    },
+    "metadata": {
+      "type": "object"
+    }
+  },
+  "additionalProperties": true
+}