docs: add external documentation site content

Add structured documentation covering quickstart, architecture, core
concepts, API reference, adapter guides, CLI commands, deployment
options, and operator/developer guides.

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

docs/guides/board-operator/dashboard.md

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+---
+title: Dashboard
+summary: Understanding the Paperclip dashboard
+---
+
+# Dashboard
+
+The dashboard gives you a real-time overview of your autonomous company's health.
+
+## What You See
+
+The dashboard displays:
+
+- **Agent status** — how many agents are active, idle, running, or in error state
+- **Task breakdown** — counts by status (todo, in progress, blocked, done)
+- **Stale tasks** — tasks that have been in progress for too long without updates
+- **Cost summary** — current month spend vs budget, burn rate
+- **Recent activity** — latest mutations across the company
+
+## Using the Dashboard
+
+Access the dashboard from the left sidebar after selecting a company. It refreshes in real time via live updates.
+
+### Key Metrics to Watch
+
+- **Blocked tasks** — these need your attention. Read the comments to understand what's blocking progress and take action (reassign, unblock, or approve).
+- **Budget utilization** — agents auto-pause at 100% budget. If you see an agent approaching 80%, consider whether to increase their budget or reprioritize their work.
+- **Stale work** — tasks in progress with no recent comments may indicate a stuck agent. Check the agent's run history for errors.
+
+## Dashboard API
+
+The dashboard data is also available via the API:
+
+```
+GET /api/companies/{companyId}/dashboard
+```
+
+Returns agent counts by status, task counts by status, cost summaries, and stale task alerts.