claude: fold in old sow-tools

docs/command-surface.md

@@ -25,19 +25,21 @@ These legacy commands are **not** top-level builders:
 - `music *` (`list-datasets`, `scan`, `build`, `credits`, `validate`, `manifest`,
   `normalize`) → folds into the **module/hak build pipeline** (music BMUs are
   packed into HAKs at build time). Exposed as `crucible-module music ...` /
-  `crucible-hak music ...` when wired. Needs `ffmpeg` at runtime.
+  `crucible-hak music ...`. Needs `ffmpeg` at runtime (in the image).
 - `config *` (`validate`, `effective`, `inspect`, `explain`, `sources`) → a
-  **global** concern shared by every builder; exposed as a global subcommand
-  group, not its own binary.
-- `build-changelog` → release tooling; lands as a global `crucible changelog`
+  **global** concern shared by every builder; exposed as the global
+  `crucible config ...`, not its own binary.
+- `build-changelog` → release tooling; exposed as the global `crucible changelog`
   rather than a content builder.
 
-## Global commands (implemented in the scaffold)
+## Global commands (implemented)
 
 ```text
 crucible help | -h          usage + builder list
 crucible version | -V       build version (git sha via -ldflags)
 crucible list               builders, one per line: name<TAB>bin<TAB>summary
+crucible config [args]      -> legacy `config` command group
+crucible changelog [args]   -> legacy `build-changelog`
 ```
 
 `crucible list` is machine-readable so CI can enumerate builders without parsing

docs/migration-from-nwn-tool.md

@@ -1,9 +1,18 @@
-# Migrating from `nwn-tool` to Crucible (operator cutover)
+# Migrating from `nwn-tool` to Crucible (cutover — DONE)
 
 The legacy toolchain lives at `gitea/sow-tools` as a single `nwn-tool` binary
 (entry `cmd/nwn-tool`, logic under `internal/`). This repo is the Crucible
-rewrite. Per the migration hard rules, the `internal/` source is **not**
-transplanted automatically — the operator migrates it. This is the checklist.
+rewrite. The cutover below has been **performed**: the `internal/` packages are
+migrated and the `module`/`topdata`/`hak`/`wiki` builders delegate to them. The
+checklist is kept as the record of what was done.
+
+> **Status.** Steps 1–8 are complete. `depot` is the one remaining unwired
+> builder (no legacy source — it was shell `mc`/S3). The open follow-up is the
+> consumer flag contract: `sow-module` / `sow-topdata` / `sow-assets-manifest`
+> wrappers invoke `crucible-<name>` with `--manifest/--source/--out` style flags
+> (see [`consumer-contract.md`](consumer-contract.md)), whereas the migrated
+> commands use the legacy CWD/project model. Reconciling the two is the Phase-6
+> consumer task and is **not** part of this cutover.
 
 ## Why a clean scaffold first