Add dashboard separation plan

Tracking file-by-file migration of dashboard code from app/ to dashboard/ service.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plan.md

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+# Dashboard Separation Plan
+
+Separating the dashboard from the monolithic `app/` into standalone `dashboard/` service.
+
+## Overview
+
+The dashboard is currently tightly coupled to the `Crawler` struct in `app/`. All handlers are methods on `*Crawler`. We need to:
+1. Create a `Dashboard` struct in `dashboard/` with `*shared.DB`
+2. Move each file, converting methods from `(c *Crawler)` to `(d *Dashboard)`
+3. Commit after each file move
+4. Update imports and dependencies as needed
+
+## File Migration Checklist
+
+### Phase 1: Core Dashboard
+- [ ] `dashboard.go` (266 lines) - Stats types and calculation
+- [ ] `templates.go` (553 lines) - HTML templates and handlers
+- [ ] `static/dashboard.css` - Stylesheet
+- [ ] `static/dashboard.js` - JavaScript
+
+### Phase 2: OAuth
+- [ ] `oauth.go` (287 lines) - OAuth config and manager
+- [ ] `oauth_session.go` (352 lines) - Session management
+- [ ] `oauth_middleware.go` (126 lines) - Auth middleware
+- [ ] `oauth_handlers.go` (521 lines) - OAuth HTTP handlers
+
+### Phase 3: API Handlers
+- [ ] `api_search.go` (311 lines) - Search API
+- [ ] `api_feeds.go` (481 lines) - Feed API handlers
+- [ ] `api_publish.go` (1031 lines) - Publish API handlers
+- [ ] `api_domains.go` (2068 lines) - Domain API handlers
+
+### Phase 4: Routes & Main
+- [ ] `routes.go` (216 lines) - Route registration
+- [ ] Create `main.go` - Entry point for dashboard service
+
+### Phase 5: Cleanup
+- [ ] Remove migrated code from `app/`
+- [ ] Update `app/main.go` to remove dashboard startup
+- [ ] Test both services independently
+
+## Progress Log
+
+<!-- Add entries here as files are migrated -->
+
+---
+*Last updated: 2026-02-02*