[Roxas2712]

Gen1Recomp exposes label-keyed engine prose separately from VM script text. Gen2Recomped lacks that registry, so portable translations either miss native readers or overwrite a script with the same label.

Add mod.content.rom_text for Gen 2 and the registered GBA games, with the shared API-3 source-string contract, rollback, freeze and guarded retirement. Gen-2 imported prose labels project into existing native label readers; battle prose uses the common formatter with named/positional slots and ending metadata. Same-spelling API-3 script records remain separate and are consumed by real native text commands, including empty/removed records and authored-prefix collisions. VM bank/address routing stays intact.

Bind all five GBA Pokemon-storage actions and descriptions explicitly through the native storage-menu constructor. These are detached views: imported constants and GBA script text remain unchanged, and older-cache fallback screens receive the same overrides. Label membership/provenance is generated from pinned public import metadata, with no cartridge prose or copied importer implementation.

Coverage boundary: this adds the shared registry and its first verified native consumers. Other GBA party/item-PC/field-menu/battle-message readers still need explicit bindings. Gen-2 screens that print hardcoded fallbacks rather than reading labels also need reader changes. Registry availability is not a claim of universal cartridge-text, printer or glyph parity. GB/DS honestly report the registry unavailable. Native host API-1/2 uses strings; the reference's native GBA IR is not claimed as a shared native-API-2 format.

Validation

Feature runtime 52541d1b0160de2361a2bffe15fd4fad4eb9a20c; combined runtime 62f8902617255195b4a12b176f171925c49209ec. Later feature changes are documentation only.

• Registry/native 175/175, ownership/isolation/retirement 510/510, formatting 57/57, provenance 52/52. Existing script-text contracts 3,700/3,700 and 234/234 pass.
• Same unchanged public consumer through both real SDKs: 24 isolated workers / 94 paired native observations at each runtime snapshot. Gold/Silver/Crystal and FireRed/Emerald, plus Red availability gating. Host API 3 and API 2/unified compare with reference API 3; reference API 2 remains native.
• Separate real GB/Gen-2 formatter comparison: 8 native engine workers / 96 paired observations. Clean Gen1 pin 535a5ec088c1ae1bf4d91dd3e35a56f64cf46d91.
• Both engines' actual storage-menu readers compare every action and description. Actual native prose/VM readers cover same-label isolation, private-prefix escaping, empty text, removals, defaults and rollback. Deterministic provenance regeneration verifies exact metadata.
• Feature 135/145 engine suites, SDK 3/3, B30 pass: exactly the same 26 FAIL lines / ten baseline suites as Unify API-3 script-text sources and native Gen-2 text IDs #170. Independent repairs remain test: repair Gen2 updater asset fixtures #128–134. Combined 190/190, SDK 3/3, B30 pass.
• Native LÖVE 11.5 / imported Gold, FireRed, Emerald: unchanged installed consumer, actual title/New Game; Gold native battle-prose helper/textbox/ending handling plus independent same-label native script/A-close/resume; GBA real storage-menu labels/descriptions/B-close/reopen; frozen late writes. The Gold smoke does not execute a complete battle/wakeup turn. Isolated identity, in-memory New Game; no normal SAVE, full playthrough, fresh full-ROM reimport or pixel-equivalence claim. Owned temporary example removed with hash guards.
• Unchanged Unify API-3 script-text sources and native Gen-2 text IDs #170 negative control rejects the registry and leaves actual native Gold prose/GBA storage readers unchanged.
• Imported Red: battle 468/468, save conversion 95/95, parity J 73/73, K 22/22. No external binary save fixture supplied.
• New Lua formatting, actionlint, Python compile and diff checks pass. No ROM, imported cache, save or private mod is included.

Stack

Depends on #170 and the earlier portability series. Incremental comparison against #170. The main-based diff includes unmerged prerequisites; the combined testfork also carries the independent baseline repairs.

All 31 hosted PR workflows report action_required pending maintainer approval. The new ROM-prose workflow has zero executed jobs. The passing validation above is local.