Release 0.2.0: single-file README w/ language toggle + CHANGELOG

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: AmmarSaleh50

CHANGELOG.md

@@ -4,6 +4,68 @@ All notable changes to study-dashboard will be documented here.
 Format loosely follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 versions follow [SemVer](https://semver.org/spec/v2.0.0.html).
 
+## [v0.2.0] — 2026-04-20
+
+Rename pass: the project is now English-canonical from the database up through
+the MCP tool names. Migrations moved to `supabase/migrations/` so the Supabase
+CLI tracks them properly. If you're upgrading an existing deploy, see the
+upgrade notes below — pushing `main` won't fix your schema on its own.
+
+### Breaking
+- **MCP tools renamed.** `list_klausuren` → `list_exams`, `update_klausur` →
+  `update_exam`. `upsert_schedule_slot` → `create_schedule_slot` (signature
+  is a pure create now; use `update_schedule_slot` to patch). `now_berlin`
+  removed — use `now_here`. Any cached tool lists in Claude.ai / Claude Code
+  will need to re-fetch after the push.
+- **DB schema.** Table `klausuren` renamed to `exams`. Columns
+  `courses.klausur_weight` / `klausur_retries` renamed to `exam_weight` /
+  `exam_retries`.
+- **Enum values.** Slot / lecture kinds moved from
+  `Vorlesung|Übung|Tutorium|Praktikum` to `lecture|exercise|tutorial|lab`.
+  Study-topic kinds from `vorlesung|uebung|reading` to
+  `lecture|exercise|reading`. Deliverable kinds from
+  `abgabe|project|praktikum|block` to `submission|project|lab|block`. Legacy
+  German values are still accepted at the API boundary via a Pydantic
+  `BeforeValidator` and normalised on the way in — existing MCP integrations
+  keep working.
+- **Migration location.** `db/migrations/` → `supabase/migrations/` with
+  timestamp-based filenames.
+
+### Added
+- Single-file README with a same-page `<details name="lang">` language
+  toggle — click 🇬🇧 English or 🇩🇪 Deutsch, the other collapses.
+- New migration `20260420000001_english_canonical_kinds.sql` that normalises
+  existing German values + renames the table/columns on upgrade.
+- FastMCP server-level `instructions` — mental model of the domain, enum
+  conventions, and orient-before-you-act guidance injected on every
+  `initialize`.
+
+### Changed
+- Every MCP tool description rewritten with "when to use / when NOT to use"
+  disambiguation plus sibling pointers. Goal: Claude picks the right tool
+  first try instead of listing + retrying. Tool count down from 46 → 44.
+- UI: hardcoded German strings replaced with English (slot-kind selects,
+  deliverable-kind selects, sidebar `Klausuren` → `Exams`, /klausuren →
+  /exams, etc.). Displayed kind strings pick up a `capitalize` class for
+  polish.
+- `INSTALL.md` §4 rewritten around `supabase db push` with an upgrade flow
+  for existing DBs (`supabase migration repair --status applied …`) and a
+  dashboard-SQL-editor fallback.
+
+### Upgrade from v0.1.0
+
+```bash
+git pull origin main
+npx supabase link --project-ref YOUR-PROJECT-REF
+# If you applied 0001–0004 via the SQL editor, mark them applied first:
+npx supabase migration repair --status applied 20260101000001 20260115000001 20260201000001 20260301000001
+npx supabase db push   # applies the English-canonical migration
+```
+
+Then rebuild the frontend (`cd web && pnpm install && pnpm build`) and redeploy.
+
+[v0.2.0]: https://github.com/AmmarSaleh50/study-dashboard/releases/tag/v0.2.0
+
 ## [v0.1.0] — 2026-04-20
 
 First public release. A self-hostable personal study dashboard with an MCP