feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard.

Lanes: a durable unit of parallel agent work, one per working directory,
tracked across session restarts. Managed lanes are git worktrees the
dashboard provisions and can reset or remove behind a three-check destroy
guard and a counted preflight; adopted lanes are directories you already
own and are never destroyable.

Pipelines: a lane moves through pipeline stages. A stage the agent declares
with evidence renders green; a stage inferred from the tool-event stream
renders dashed amber and never counts as done. Detection is forward-only
within a 30-minute window, and never writes the declared stage.

Workspace: one page at /run with a lane grid, the selected lane's pipeline,
and a full Claude console behind a disclosure.

.prettierignore

@@ -0,0 +1,26 @@
+node_modules/
+data/
+client/dist/
+client/node_modules/
+*.db
+*.db-wal
+*.db-shm
+package-lock.json
+client/package-lock.json
+.vs/
+*.md
+index.html
+wiki/index.html
+*.yml
+*.yaml
+mcp/build/
+desktop/out/
+desktop/release/
+desktop/node_modules/
+desktop/package-lock.json
+desktop/assets/*.svg
+desktop/assets/*.png
+desktop/assets/*.icns
+desktop/assets/icon.iconset/
+wiki/mermaid.min.js
+fonts/*.woff2