[dayfine]

Depends on #184

Adds Route 3, Route 4 and Route 4's Pokemon Center to the FRLG maps, and makes the walker walk where the game doesn't allow running.

• frlg_maps.py generates the three maps; Pewter City and Cerulean City gain their connections to them. Route 4's Center gets nurse_front (7, 4) and salesman_front (2, 3), west of the Magikarp salesman.
• The generator writes "allow_running": false for maps whose pokefirered header forbids running (indoors), and each trainer's sight and facing (or the ways a turning or wandering trainer looks).
• Map names on the command line are now added to the maps already in --out, so warps and connections still join them all.
• Shared MapData reads allow_running (left out: true); that change is on Pokemon navigation: the shared core for AutoStory #114 and merged down the FRLG chain.
• A planned step on a no-running map is walk_only: the walker times it as a walk and holds no B. Set by the planner, wall holds, re-anchoring and the story's fixed legs.

Testing

• New unit tests: OverworldMaps (new maps load, Pewter to Route 4's Center plans, walk_only inside a Center only); FRLG walker: find the player again after an interrupted leg (position recovery) #119's recovery on the new maps: every open leg of 00.11/00.12 stopped at any estimate or anywhere is found again, and Lass Robin's and a Viridian Forest Bug Catcher's sight place a trainer's stop, OverworldWalk hold cases (a run indoors walks), MapData (allow_running parse and error).
• frlg_maps.py --check matches all 28 maps; devtools/maps/tests pass (new test_frlg_maps.py).
• Changed .cpp files syntax-checked locally with the Windows-Clang missing-field warning on; code health 0 failures. Not built or run locally; CI dispatched.
• Not checked on the console: the walk pace inside a Center with B held.

🤖 Generated with Claude Code

https://claude.ai/code/session_01AKYzhrMnPK61XHWEch4a6E

[dayfine]

Superseded by #215 (FRLG stack consolidated into stage PRs; will be resplit for upstream).