[ThisIsAkill]

Rebuilds the location map data from readable text (tools/maps.py). Verify counts it in a new maps category (555,262 B), never as source.

Only packs a location record names are converted.

• maps.derive_named reads the 512 LocRom records: MapProps as 16 bits, and Tileset12/Tileset3 with $FF (LocRom_SetNone) naming nothing.
• check() asserts that the named set equals the converted set, as graphics.derive_packed does.
• Six packs no location names stay as packed bytes: Map_PropsPtrs 10, 30, 141 and 172, LocGfx_Meta12Ptrs 54 and LocGfx_Meta3Ptrs 3.

Location maps: 197 Map_PropsPtrs packs (380,613 B packed, 995,296 B unpacked).

• Proof. LocLoad_UnkA33B reads the six-byte MapProps header. Map_UnpackTilePlanes then reads:
  • layers 1 and 2, sized from Size1;
  • layer 3, when Size3 bit 7 is set;
  • three attribute bytes per layer-1 tile, as single entries or runs.
• Form. One hex grid per layer, plus a grid of attribute triples.
• Runs. Every map writes its runs the same way (every repeat of two or more, up to 256). The assembler rebuilds them from the grid, and extraction refuses any map written another way.
• Short streams. A few maps' streams end before the attribute plane is full. The game reads whatever follows in WRAM there, and the text marks those cells --------.

Metatiles: 71 whole-table packs (174,649 B packed, 253,952 B unpacked).

• Proof. Map_WriteRow1 and the other writers send each metatile's four words unchanged to the BG tilemaps, so they are SNES tilemap words.
• Form. Each word as TTT/P with its p, h and v flags.

Exits and treasures are records:

• ExitRom: 814 × 7 B.
• TreasureRom: 249 × 4 B, with Tile and Contents read 16-bit by Field_CheckTileInFront.
• Both counts come from the end entries of their offset tables.

Kept as bytes:

• the six unnamed packs above;
• the ten 1-byte Meta12 packs;
• two entries that aren't valid packs ($F5:EE02 and $EF:B168);
• the scene layer packs, which come next.

Tests. tools/test_maps.py runs in make test-tools and in the no-ROM CI job. All 22 refusals and the named-set check have a test that fails without them.

Merge with main. Main is merged in, including #130. Every gate passes with CHRONORET_REQUIRE_STRACE=1. The whole ROM is still accounted for (MATCH, VERIFIED).

An independent audit found it sound. Its one finding, the unnamed packs, is fixed here.