chore: add changeset and release notes for v0.10.2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: prosdev

.changeset/fix-mcp-install-remove-metrics.md

@@ -0,0 +1,5 @@
+---
+"@prosdevlab/dev-agent": patch
+---
+
+Fix `dev mcp install` failing with "Repository not indexed" after successful indexing. Remove dead metrics module and better-sqlite3 dependency (-36 packages, -2400 lines).

website/content/latest-version.ts

@@ -4,10 +4,10 @@
  */
 
 export const latestVersion = {
-  version: '0.10.1',
-  title: 'Tool Refinements & Docs Cleanup',
+  version: '0.10.2',
+  title: 'MCP Install Fix & Dependency Cleanup',
   date: 'March 30, 2026',
   summary:
-    'Renamed dev_inspect → dev_patterns, merged dev explore into dev search, fixed search thresholds, expanded scanner exclusions.',
-  link: '/updates#v0101--tool-refinements--docs-cleanup',
+    'Fixed dev mcp install check, removed dead metrics module and better-sqlite3 dependency.',
+  link: '/updates#v0102--mcp-install-fix--dependency-cleanup',
 } as const;

website/content/updates/index.mdx

@@ -9,6 +9,20 @@ What's new in dev-agent. We ship improvements regularly to help AI assistants un
 
 ---
 
+## v0.10.2 — MCP Install Fix & Dependency Cleanup
+
+*March 30, 2026*
+
+**Fixed `dev mcp install` and removed dead metrics module.**
+
+- Fixed `dev mcp install` failing with "Repository not indexed" after successful indexing (was checking for stale LanceDB `vectors` directory instead of `metadata.json`)
+- Removed dead metrics module — MetricsStore, analytics, collector were write-only with no consumers
+- Removed `better-sqlite3` native dependency (-36 transitive packages)
+- Updated storage help text to reflect actual Antfly-based storage
+- 1,568 tests passing, 0 failures
+
+---
+
 ## v0.10.1 — Tool Refinements & Docs Cleanup
 
 *March 30, 2026*