fix: strict anti-hallucination default prompt

- Replace creative/warm tone with factual summarization
- Explicitly forbid invention, assumption, or hallucination
- Model must ONLY use information from provided entries
- Acknowledge gaps rather than fill them

CHANGELOG.md

@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Changed
+- **Strict anti-hallucination default prompt**: New users get a grounded, factual prompt that ONLY summarizes what's recorded - no invention, no embellishment
+
+## [0.2.0] - 2026-03-26
+
 ### Added
 - **Task System**: AI journal generation now creates tasks that track:
   - Request sent to AI provider (full prompt + config)
@@ -17,6 +22,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - `GET /api/v1/tasks/:id` endpoint
 - **Theme System**: Light/Dark/System theme toggle
 - **Branding**: "DearDiary.io" logo in navbar
+- **Default user**: Auto-created via `DEFAULT_USER_EMAIL` and `DEFAULT_USER_PASSWORD` env vars
+- `/login` route (was `/auth`)
 
 ### Changed
 - **Renamed project from "TotalRecall" to "DearDiary"**