docs: remove development roadmap — stale-prone, not useful

docs/development-roadmap.md

@@ -1,44 +0,0 @@
-# Development Roadmap
-
-## Current State: v0.1.0
-
-Core framework complete. One fully implemented module (trading), three stubs (wordle, loldle, misc). 110 passing tests. Deployed to Cloudflare Workers.
-
-## Completed
-
-### Phase 1: Bot Framework (v0.1.0)
-- [x] Cloudflare Workers entry point with webhook validation
-- [x] grammY bot factory with memoized cold-start handling
-- [x] Plug-n-play module system with static import map
-- [x] Three-tier command visibility (public/protected/private)
-- [x] Unified conflict detection across all modules
-- [x] KVStore interface with auto-prefixed per-module namespacing
-- [x] Post-deploy register script (setWebhook + setMyCommands)
-- [x] `/info` and `/help` commands
-- [x] 56 unit tests covering all framework seams
-
-### Phase 2: Trading Module (v0.1.0)
-- [x] Paper trading with 5 commands (topup/buy/sell/convert/stats)
-- [x] Real-time prices: CoinGecko (crypto+gold), TCBS (VN stocks), ER-API (forex)
-- [x] 60-second price caching in KV with stale fallback
-- [x] Per-user portfolio storage with VND as base currency
-- [x] P&L tracking (total invested vs current portfolio value)
-- [x] 54 unit tests for symbols, formatters, portfolio CRUD, handlers
-
-## Planned
-
-### Phase 3: Game Modules
-- [ ] Wordle implementation (currently stub)
-- [ ] Loldle implementation (currently stub)
-- [ ] Game state persistence in KV
-
-### Phase 4: Infrastructure
-- [ ] CI pipeline (GitHub Actions: lint + test on PR)
-- [ ] KV namespace IDs in wrangler.toml (currently REPLACE_ME placeholders)
-- [ ] Per-module rate limiting consideration
-
-### Future Considerations
-- Internationalization (per-module if needed)
-- More trading assets (expand symbol registry)
-- Trading history / transaction log
-- Group chat features