## Wolfenstein: Expand E1M2 level and persist per-mission weapon loadouts
### Level Data (assets/gamedata/wolfenstein/level-e1m2.json)
- Increase map dimensions from 33×24 to 39×29 cells, adding new corridors, rooms, and wall structures
- Add tile type `5` (likely a new floor or decorative element) throughout the expanded areas
- Reposition existing doors, guards, items, objects, and wall art to match the new layout
- Add new entities: additional guards with patrol routes, machine gun pickups, ammo, health kits, yellow key, and secret door in the expanded sections
- Update player start position and exit location for the larger map
### Game Logic (src/games/wolfenstein/WolfensteinGame.js)
- Introduce `LOADOUTS_KEY` localStorage persistence to record which weapons the player owned when each mission was unlocked
- Replace `_freshCampaignCarry()` with `_carryForUnlockedStart()`, which loads the recorded weapon loadout for a given mission (falling back to fists-only for mission 0 or unrecorded missions) and tops up ammo to full
- Add `_fullAmmoFor()` helper that computes max ammo reserves for all ammo-consuming weapons in a loadout
- Update `_recordMissionCleared()` to capture the player's current weapon list at clear-time and store it as the unlock loadout for the next mission (only advancing monotonically)
- Change "Next Mission" flow to rely on the recorded loadout rather than extracting live state, ensuring consistent full-ammo/full-health starts
- Update `_retry()` to restore the original attempt's weapons but top up ammo to full per the "die → come back with full ammo" spec
- Added new "level-new" level data (33x24 grid) with doors, enemies, items, and objects
- Removed one ammo-clip from e1m1 and added two health-large pickups
- Introduced shared HUD row anchor constants for consistent positioning
- Updated HUD to display level name alongside episode/mission info
- Added gray rounded-rect background behind weapon icon in HUD for better contrast against steel-blue bar
- Repositioned weapon icon to dynamically sit left of ammo text based on rendered width
- Updated WolfensteinArt to generate the new HUD icon background texture
- Implement 90° field-of-view check for idle/patrolling guards (only alerts when player is within cone, in range, and has clear line of sight)
- Change patrol behavior: 0-1 waypoints ping-pong, 2+ waypoints form a one-way loop (home → nodes → home → ...)
- Reduce patrol speed to 50% of chase speed for natural movement
- Update editor to display loop closing line when 2+ patrol nodes exist
- Add new weapon sprite images (gattling, machinegun, plasma, rocket, shotgun)
- Extend map parser to support patrol route definitions via `opts.patrols`
- Add patrol routes to e1m1 (guard at 2.5,18.5) and e1m2 (guard at 9.5,8.5)
- Add comprehensive tests for vision cone (inside/outside edge cases) and patrol loop/ping-pong behavior
Brian Fertig