feat(web): fleet settings UI (MS22-P1h) (#617)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

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

@@ -200,6 +200,82 @@ const categories: CategoryConfig[] = [
       </svg>
     ),
   },
+  {
+    title: "LLM Providers",
+    description:
+      "Add and manage LLM providers, encrypted API keys, base URLs, and model inventories.",
+    href: "/settings/providers",
+    accent: "var(--ms-blue-400)",
+    iconBg: "rgba(47, 128, 255, 0.12)",
+    icon: (
+      <svg
+        width="20"
+        height="20"
+        viewBox="0 0 20 20"
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="1.5"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        aria-hidden="true"
+      >
+        <rect x="2.5" y="4" width="15" height="12" rx="2" />
+        <path d="M2.5 8h15" />
+        <circle cx="6" cy="12" r="1" />
+        <circle cx="10" cy="12" r="1" />
+        <circle cx="14" cy="12" r="1" />
+      </svg>
+    ),
+  },
+  {
+    title: "Agent Config",
+    description: "Choose primary and fallback models, plus optional personality/SOUL instructions.",
+    href: "/settings/agent-config",
+    accent: "var(--ms-teal-400)",
+    iconBg: "rgba(20, 184, 166, 0.12)",
+    icon: (
+      <svg
+        width="20"
+        height="20"
+        viewBox="0 0 20 20"
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="1.5"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        aria-hidden="true"
+      >
+        <path d="M4 5h12" />
+        <path d="M4 10h12" />
+        <path d="M4 15h7" />
+        <circle cx="14.5" cy="15" r="1.5" />
+      </svg>
+    ),
+  },
+  {
+    title: "Authentication",
+    description: "Manage OIDC provider settings and breakglass admin password recovery.",
+    href: "/settings/auth",
+    accent: "var(--ms-amber-400)",
+    iconBg: "rgba(245, 158, 11, 0.12)",
+    icon: (
+      <svg
+        width="20"
+        height="20"
+        viewBox="0 0 20 20"
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="1.5"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        aria-hidden="true"
+      >
+        <rect x="5" y="8" width="10" height="8" rx="1.5" />
+        <path d="M7 8V6a3 3 0 0 1 6 0v2" />
+        <circle cx="10" cy="12" r="1" />
+      </svg>
+    ),
+  },
   {
     title: "Users",
     description: "Invite, manage roles, and deactivate users across your workspaces.",