RagnarokOnline: unify offline extraction pipeline into a single script

The five stage scripts and the extract-all orchestrator collapse into
src/RagnarokOnline/tools/extract.ts. Bare CLI args are the map-id
filter; --only=stage1,stage2 (repeatable) restricts the run. The
previously-missing extract-from-grf stage is now wired in.

Author: malvarezcastillo

src/RagnarokOnline/mapcategory.ts

@@ -1,7 +1,7 @@
 
 // Classifies a map by its id. Consumed by the scene list (grouping), the sky
 // renderer (dome enable + default sky tint), and the fog path (dungeons only).
-// The category for each known map is baked into the manifest by gen-maps.ts;
+// The category for each known map is baked into the manifest by extract.ts (Stage 5);
 // the runtime is just a lookup. Ids outside the manifest fall back to "other".
 
 import { maps } from "./maps.js";

src/RagnarokOnline/maps.ts

@@ -1,7 +1,7 @@
 
 // Generated map manifest for the Ragnarok Online scene registry. Do not edit
 // by hand: regenerate by running
-//   npx tsx src/RagnarokOnline/tools/gen-maps.ts
+//   npx tsx src/RagnarokOnline/tools/extract.ts --only=gen-maps
 //
 // 1014 entries (992 bare + 22
 // pre-renewal classic variants with rebuilt geometry). 931 with an iRO

src/RagnarokOnline/particles.ts

@@ -1,6 +1,6 @@
 
 // Per-map particle emitters from each map's compiled effecttool LUB. Offline,
-// `tools/extract-emitters.ts` runs the patched Lua 5.1 binary to dump emitter
+// `tools/extract.ts` (Stage 3) runs the patched Lua 5.1 binary to dump emitter
 // tables to `<mapId>.emitters.json` next to the .rsw. At runtime we fetch the
 // JSON, decode textures, transform to the render frame, and own a particle pool
 // per emitter.