Add game UI panels, keyboard shortcuts, docs narrative overhaul, and unified dev script

- Add MiniStarMap, NpcMarketPanel, ShipStatusPanel, useKeyboardShortcuts
- Add progress bars for approach/mining operations and cargo fill indicator
- Rewrite docs from spreadsheet-first to exploration-first open-world RPG
- Replace dev:db + dev:standalone with unified dev script (scripts/dev.sh)
- Add Vite chunk splitting for three.js and spacetimedb
- Fix displayName dependency in useSpacetimeConnection
- Remove stale usePlayerSession.ts
- Add AGENTS.md files across all packages

services/AGENTS.md

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+# services/ — Backend Services
+
+Server-side modules that own authoritative game state.
+
+| Service | Protocol | Description |
+|---------|----------|-------------|
+| `spacetimedb` | SpacetimeDB TS module | Authoritative game backend: all tables, reducers, validation |
+
+## Key Files
+
+- `spacetime.json` (repo root) — points `module-path` at `./services/spacetimedb`
+- `spacetime.local.json` — local database name: `void-nav-dev`

services/spacetimedb/AGENTS.md

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+# services/spacetimedb — Authoritative Game Backend
+
+Package: `@void-nav/spacetimedb`
+Single file: `src/index.ts` (~595 lines)
+
+This is the **entire server-side game logic** — all tables, all reducers, all validation. SpacetimeDB runs this as a hosted module; clients subscribe to tables and call reducers.
+
+## Tables (9)
+
+| Table | PK | Purpose |
+|-------|-----|---------|
+| `player` | identity | Player identity, connection state, display name |
+| `ship` | ship_id (u64) | Ship position, flight mode, docking state, cargo capacity |
+| `system` | system_id | Star system (currently only "solace") |
+| `station` | station_id | Station within a system |
+| `point_of_interest` | poi_id | Navigable locations: stations, asteroid belts |
+| `cargo_item` | cargo_item_id (u64) | Ship cargo: item type, category, quantity, unit price |
+| `wallet` | owner_identity | ISK balance |
+| `ship_operation` | ship_id | Active timed operation (approach/mining) with start time and duration |
+| `server_event` | event_id (u64) | Server-side event log |
+
+## Reducers (12)
+
+| Reducer | Purpose |
+|---------|---------|
+| `seedWorld` | Creates starter system, station, POIs |
+| `connectPlayer` | Player onboarding: creates player + ship + wallet |
+| `renamePlayer` | Updates display name |
+| `ping` | Connection test |
+| `undock` | Transitions ship from docked to flight |
+| `selectTarget` | Sets ship's selected POI target |
+| `startApproach` | Begins 5s approach operation to selected target |
+| `completeApproach` | Finalizes approach, updates ship position |
+| `dock` | Transitions ship to docked at current station |
+| `startMining` | Begins 6s mining cycle at asteroid belt |
+| `completeMiningCycle` | Finalizes mining, adds 1000 Veldspar to cargo |
+| `sellOreToNpcMarket` | Sells ore from cargo, credits ISK wallet |
+
+## Constants (all hardcoded, top of file)
+
+| Constant | Value | Should become |
+|----------|-------|---------------|
+| `STARTER_SYSTEM_ID` | `"solace"` | Procedurally generated |
+| `APPROACH_DURATION_MS` | `5000n` | Ship-class dependent |
+| `MINING_DURATION_MS` | `6000n` | Module + skill dependent |
+| `STARTER_WALLET_ISK` | `25000n` | Tunable |
+| `STARTER_CARGO_CAPACITY` | `2500n` | Ship-class dependent |
+| `MINING_YIELD_QUANTITY` | `1000n` | Module + skill dependent |
+| Veldspar price | `12n` ISK | Dynamic NPC pricing |
+
+## Validation
+
+Every reducer has guard clauses that throw on invalid state (wrong flight mode, missing target, already operating, etc.). Timing is server-authoritative — `completeApproach` and `completeMiningCycle` check `ctx.timestamp` against `completes_at_ms`.
+
+## What's Not Here Yet
+
+The design docs describe 56+ tables. This module implements 9. Missing systems:
+- Combat (NPC entities, damage, power allocation, bounties, loot)
+- Ship fitting (module catalog, CPU/PG, slot types)
+- Multiple ship classes
+- Refining and manufacturing
+- Missions / NPC agents / faction standing
+- Dynamic NPC pricing (EMA, demand pressure)
+- Multi-system travel (stargates, warp)
+- Skills / XP progression
+- Insurance, CONCORD, world events
+- Zora ship AI