feat: sync games from Steam #396

- Format play-time-minutes as human-readable duration via JS
 (e.g. '226' → '3 hours, 46 minutes')
- Move game icon into play-of h-cite instead of entry photo
 (icons are too small for standalone photos)
- Remove CSS ::after 'm' suffix (JS handles formatting now)

When a game entry was deleted and the worker ran again, it found
no active entry (deleted_at_hlc IS NULL) but create_entry would
generate the same slug-based UID, hitting IntegrityError which
was silently swallowed.
Now the lookup includes soft-deleted entries. If found deleted,
the entry is restored by clearing deleted_at_hlc and updating
playtime/published.

Instead of one entry per game that gets updated, each sync run
creates new play-N entries (like listen posts) for games played
since the last run. This gives a timeline of gaming sessions.
Changes:
- Worker tracks last run time in new worker_state table
- First run records baseline without creating entries
- Subsequent runs create entries for games with rtime_last_played > last_run
- Sequential play-N slugs via _determine_slug in storage.py
- Removed update/restore logic (no longer needed)
- Schema: added worker_state table (key TEXT PRIMARY KEY, value TEXT)

🐧 linux, 🍎 mac, 🪟 windows, 🎮 steam-deck

formatPlaytime/formatPlatforms were only called from processNewEntries
(client-side rendering). Now also called on module load for
server-rendered HTML.

Without this, create_entry wouldn't retry on slug collisions
for play-N entries (race condition handling).

initEntries didn't call processNewEntries() when server-rendered
entries existed (currentOffset > 0). On SPA navigation, the router
replaces DOM content with fresh server HTML but formatPlaytime/
formatPlatforms never ran on those elements.
Also: reformat SQL to leading comma style in tools_test.py,
sync_steam_test.py, and sync_steam.py.