Update Code Farm documentation

Document the current Code Farm mechanics across the docs: raids and
steal windows, prestige and refactor, defense upkeep and downgrade,
infrastructure and cosmetics, the community treasury and weekly grant,
market saturation, mastery, and the Era boards - in README.md, the root
and routers CLAUDE.md, and the game service CLAUDE.md.

CLAUDE.md

@@ -71,6 +71,7 @@ devplace isslop analyze <url>  # run a AI usage analysis from the terminal (repo
 devplace isslop prune       # delete expired AI usage analysis job rows (analyses + reports persist)
 devplace isslop clear       # delete every AI usage analysis, its report and job rows
 devplace game market prune  # delete Code Farm market tick buckets older than the tracking window
+devplace game steals prune  # delete Code Farm raid records older than the raid-efficiency window
 devplace game era status    # show the current Code Farm Era
 devplace game era start <name> [--days N]  # start a Code Farm Era (default 28 days)
 devplace game era end       # end the running Code Farm Era (ranks, awards Stars, records results)
@@ -136,7 +137,7 @@ Nested `CLAUDE.md` files (loaded automatically by Claude Code only when a file i
 | `devplacepy/services/bot/CLAUDE.md` | `BotsService` fleet |
 | `devplacepy/services/dbapi/CLAUDE.md` | `/dbapi` primary-admin-only read-only database API |
 | `devplacepy/services/pubsub/CLAUDE.md` | Database-free pub/sub bus |
-| `devplacepy/services/game/CLAUDE.md` | Code Farm idle game |
+| `devplacepy/services/game/CLAUDE.md` | Code Farm idle game (economy invariants, raids, the one-pure-function rule) |
 | `devplacepy/services/CLAUDE.md` | Background task queue, AI correction/modifier, presence, live view relay, `BaseService`/`ServiceManager` |
 | `devplacepy/database/CLAUDE.md` | Dataset rules, indexing conventions, soft delete, tables, site settings |
 | `devplacepy/utils/CLAUDE.md` | Notifications and gamification (XP/levels/badges/leaderboard) |