# Current Session State

## 🎯 Active Goal
Frontend modernization with tabs, HTMX, and Tailwind build pipeline complete.

## ✅ Completed
- Initial Phase 1 feature set (Trello, Todoist, Obsidian, PlanToEat)
- Basic testing suite (9/9 passing)
- **Database Hardening:** Enabled WAL mode for better concurrency (sqlite.go:32-35)
- **Database Hardening:** Set MaxOpenConns(1) to prevent "database is locked" errors (sqlite.go:38)
- **Security Fix:** SQL injection vulnerability in GetNotes LIMIT clause (sqlite.go:215-221)
- **Commit:** 4c03e9c "Harden database security and reliability"
- **Security Fix:** Path traversal mitigation - skip symbolic links in Obsidian scanner (obsidian.go:54-57)
- **Commit:** 325811c "Mitigate path traversal risk in Obsidian scanner"
- **Performance Optimization:** Parallelized Trello card fetching with semaphore-limited concurrency (trello.go:197-220)
- **Commit:** 80c2332 "Parallelize Trello card fetching for improved performance"
- **Cleanup:** Removed AI Agent middleware and `/api/claude/snapshot` endpoint
  - Deleted: internal/middleware/ai_auth.go, ai_auth_test.go
  - Removed: AIAgentAPIKey from config.go
  - Removed: AI Endpoint reference from CLAUDE.md documentation
  - All tests passing after removal
  - **Commit:** 1d47891 "Remove AI agent middleware and snapshot endpoint"
  - **Commit:** 6a89948 "Remove obsolete AI endpoint reference from documentation"
- **Test Coverage:** Added security tests for path traversal and SQL injection fixes
  - internal/api/obsidian_test.go: TestGetNotes_SymlinkSecurity validates symlink protection
  - internal/store/sqlite_test.go: TestGetNotes_LimitClause validates LIMIT parameterization
  - 2 new test files with 7 total test cases, all passing
  - **Commit:** e576710 "Add security tests for path traversal and SQL injection fixes"
- **UX Improvement:** Board sorting - non-empty boards first, then alphabetical
  - internal/api/trello.go:220-228: Added sort logic to GetBoardsWithCards
  - internal/store/sqlite.go:428-433: Updated SQL query to sort cached boards consistently
  - Empty boards now pushed to bottom, active boards at top
  - **Commit:** 9ef5b7f "Sort Trello boards with active boards first"
- **Frontend Modernization:** Complete UI overhaul with tabs, HTMX, and Tailwind build pipeline
  - **Commit:** 06c7485 "Modernize frontend with tabs, HTMX, and Tailwind build pipeline"
- **Unified Atom Model:** Created abstraction layer for all data sources
  - internal/models/atom.go: New Atom struct with AtomSource and AtomType enums
  - Mapper functions: TaskToAtom, CardToAtom, NoteToAtom, MealToAtom
  - Priority normalization (1-4 scale), brand color mapping (Trello=Blue, Todoist=Red, Obsidian=Purple, PlanToEat=Green)
  - Preserves raw data for future write operations
  - All tests passing after implementation
- **4-Tab Architecture:** Implemented unified information architecture using Atom model
  - internal/handlers/tabs.go: New TabsHandler with 4 specialized methods
  - HandleTasks: Unified view of Todoist + Trello cards with due dates, converted to Atoms, sorted by due date and priority
  - HandlePlanning: Trello boards view for project planning
  - HandleNotes: Obsidian notes view
  - HandleMeals: PlanToEat meals view
  - cmd/dashboard/main.go: Registered 4 tab routes (/tabs/tasks, /tabs/planning, /tabs/notes, /tabs/meals)
  - web/templates/index.html: Updated navigation with 4 tabs
  - web/templates/partials/tasks-tab.html: Rewritten to render unified Atom list with source icons, priorities, and brand colors
  - web/templates/partials/planning-tab.html: New tab for Trello boards
  - web/templates/partials/meals-tab.html: New tab for PlanToEat meals
  - Clean separation of concerns: Tasks (due items), Planning (all boards), Notes (knowledge), Meals (calendar)
- **Trello Smart Sorting:** Activity-based board ordering by newest card
  - internal/store/sqlite.go:426-438: Updated GetBoards SQL query with LEFT JOIN and GROUP BY
  - Sort order: 1) Has cards (COUNT > 0), 2) Newest card (MAX(c.id) DESC), 3) Board name (ASC)
  - internal/api/trello.go:220-254: Updated GetBoardsWithCards sorting logic
  - Finds maximum card ID in each board (Trello IDs are chronologically sortable)
  - Active boards with recent activity appear first, inactive boards at bottom
  - All tests passing (go test ./...)
  - **Build Pipeline:** npm + PostCSS + Tailwind configuration (replaced CDN)
    - package.json, tailwind.config.js, postcss.config.js, Makefile
    - Custom design system with brand colors (Trello, Todoist, Obsidian, PlanToEat)
    - Compiled CSS: 27KB (vs 3MB CDN), Inter font, custom components
  - **Tab Interface:** Separate "Tasks" (Trello/Todoist/PlanToEat) from "Notes" (Obsidian)
    - HTMX for partial page updates (no full refreshes)
    - Tab switching with proper state management
    - Auto-refresh maintains current tab context
  - **Template Restructuring:** Modular partials architecture
    - web/templates/partials/: 7 reusable template components
    - tasks-tab.html, notes-tab.html, trello-boards.html, todoist-tasks.html, etc.
    - Cleaner separation of concerns
  - **Empty Board Collapsible:** Native `<details>` accordion for empty Trello boards
    - Active boards displayed prominently in 3-column grid
    - Empty boards hidden in expandable section
    - Reduces visual clutter, scales well
  - **Backend Tab Endpoints:** HTMX-compatible handlers
    - /tabs/tasks, /tabs/notes, /tabs/refresh routes
    - HandleTasksTab, HandleNotesTab, HandleRefreshTab methods
    - Selective rendering for faster tab switches
  - **JavaScript Enhancements:** app.js rewritten for HTMX integration
    - HTMX event listeners for loading states
    - Current tab tracking for refresh/auto-refresh
    - Improved error handling
  - **Visual Design:** Modern aesthetic with brand colors
    - Section headers with color-coded accents
    - Improved typography hierarchy (Inter font)
    - Enhanced spacing (10-unit sections, 6-unit cards)
    - Card hover effects with smooth transitions
    - Custom scrollbar styling

## 🏗️ Architecture & Decisions
- **Decision:** Use SQLite for caching with a 5-minute TTL.
- **Decision:** Trello is the primary task system, requiring Key+Token auth.
- **Decision:** Limit Trello concurrent requests to 5 to prevent API rate limiting.
- **Decision:** Removed AI agent endpoint - dashboard is human-facing only.
- **Decision:** HTMX over React/Vue for simpler state management and server-side rendering.
- **Decision:** Compiled Tailwind over CDN for 99% smaller CSS and custom design tokens.
- **Decision:** Template partials for HTMX-friendly swap targets and reusability.
- **Decision:** Native `<details>` element for empty board collapsible (no JS required).
- **Decision:** Unified Atom Model - Abstract all data sources (Trello, Todoist, Obsidian, PlanToEat) into a single `models.Atom` type for consistent handling, sorting, and rendering across the UI.

## 📋 Next Steps
1. **Phase 2 Step 4:** Todoist "due first" sorting.
2. **Phase 2 Remaining:** Obsidian search & categorization, visual overhaul (glassmorphism), write operations, PWA.

## ⚠️ Known Blockers / Debt
- None currently.