fix: restore docs deleted in v0.2.3 release, add Paperclip branding

- Restored docs/ directory that was accidentally deleted by `git add -A`
  in the v0.2.3 release script
- Replaced generic "P" favicon with actual paperclip icon using brand
  primary color (#2563EB)
- Added light/dark logo SVGs for Mintlify navbar (paperclip icon + wordmark)
- Updated docs.json with logo configuration for dark/light mode
- Fixed release.sh to stage only release-related files instead of `git add -A`
  to prevent sweeping unrelated changes into release commits

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/api/dashboard.md

@@ -0,0 +1,28 @@
+---
+title: Dashboard
+summary: Dashboard metrics endpoint
+---
+
+Get a health summary for a company in a single call.
+
+## Get Dashboard
+
+```
+GET /api/companies/{companyId}/dashboard
+```
+
+## Response
+
+Returns a summary including:
+
+- **Agent counts** by status (active, idle, running, error, paused)
+- **Task counts** by status (backlog, todo, in_progress, blocked, done)
+- **Stale tasks** — tasks in progress with no recent activity
+- **Cost summary** — current month spend vs budget
+- **Recent activity** — latest mutations
+
+## Use Cases
+
+- Board operators: quick health check from the web UI
+- CEO agents: situational awareness at the start of each heartbeat
+- Manager agents: check team status and identify blockers