feat: add theme system, branding, and task logging

- Add light/dark/system theme toggle in settings
- Add DearDiary.io branding in navbar
- Add task logging for journal generation with request/response
- Rename project from TotalRecall to DearDiary
- Update Docker configuration

CHANGELOG.md

@@ -0,0 +1,47 @@
+# Changelog
+
+All notable changes to DearDiary will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+## [Unreleased]
+
+### Added
+- **Task System**: AI journal generation now creates tasks that track:
+  - Request sent to AI provider (full prompt + config)
+  - Response received from AI
+  - Status: pending, completed, failed
+  - Error messages if failed
+- `Task` model in database for logging
+- `GET /api/v1/journal/:date/tasks` endpoint
+- `GET /api/v1/tasks/:id` endpoint
+- **Theme System**: Light/Dark/System theme toggle
+- **Branding**: "DearDiary.io" logo in navbar
+
+### Changed
+- **Renamed project from "TotalRecall" to "DearDiary"**
+- Journal generation now returns `{ journal, task }` on success
+- Auth redirect now works properly (PrivateRoute component)
+- Android app package: `com.totalrecall` → `com.deardiary`
+
+### Fixed
+- Ollama support: properly routes to configured baseUrl
+- Anthropic API integration
+
+## [0.1.0] - 2026-03-26
+
+### Added
+- User authentication (register/login)
+- API key authentication for app access
+- Entry CRUD (text, voice, health types)
+- Day aggregation and history
+- Journal generation with multiple AI providers:
+  - OpenAI (GPT-4)
+  - Anthropic (Claude)
+  - Ollama (local)
+  - LM Studio (local)
+- Settings page for AI configuration
+- React frontend with dark theme
+- Native Android app (Kotlin/Compose)
+- Docker deployment
+- Prisma ORM with SQLite (extensible to PostgreSQL/MySQL)