Steam Social Progress — Fabled Puzzle Leaderboards & Achievements

**Fabled Puzzle — Global leaderboards**

- Your **highest cleared puzzle level** now syncs to Steam.

- Open **Ranks** inside Fabled Puzzle to see the **global top players**.

- Progress uploads when you clear a level, and again on launch so your best score stays current.

- Your local best is always shown, even if Steam is briefly unavailable.

**Steam Achievements (Errungenschaften)**

- Steam Achievements are now wired into the game client.

- First live puzzle achievement: **FABLED_PUZZLE_0 (Bronze)** — unlocks when you reach **puzzle level 2**.

- Clearing a **higher** level **cascades** — every earlier grade you’ve earned is unlocked/updated in order.

- New **Achievements** panel in Fabled Puzzle:

- Color icons for unlocked grades

- Greyed-out icons for locked grades

- **Sync** button to refresh unlock state from Steam

**Deeper Steam integration**

- Shared Steam session used for auth, leaderboards, and achievements.

- Achievement ladder prepared for future grades (Silver → Ocean) as Partner entries go live.

- Clearer in-game status when Steam is bypassed vs connected (use a Steam-launched / `dev:steam` build for live sync).

### Improvements

- Fabled Puzzle HUD and panels polished for ranks + achievements side by side.

- Startup sync pushes local puzzle progress and eligible achievements as soon as Steam is ready.

- Safer handling when Steam is offline or in auth-bypass: local progress still displays correctly.