refactor(db): split import_economics.py; single generator-source registry (T-1067)

import_economics.py 2,620 → 309 lines — a thin orchestrator keeping the
exact CLI, single-transaction/rollback contract, and exit codes. The 16
import steps, MIGRATION_SQL, brands shell-out, validators, and stamp
write now live in tooling/economy-db/economy_import/ (db, migration,
economy, corporations, brands, bodies, atlas, specialization, traits,
validators, stamp, paths, errors). Full type hints throughout.

tooling/generator_sources.py replaces the triplicated source registry
(importer / stamp checker / pr-process watch list — the skill now derives
its list via --list). The registry stamps itself, and economy_import/
modules are globbed fail-closed, so a future module is stamped the moment
it exists — closing the silently-weakened-stamp failure mode.

Rider: connector config helpers centralized in tooling/db/common.py.

Byte-identical behavior proven: full-import table dump diff EMPTY over
107,843 lines / 37 tables (volatile timestamp fields excluded); dry-run
output parity; generated_brands.toml sha unchanged. make test-tooling
PASS; ruff clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.claude/rules/asset-pipeline.md

@@ -35,10 +35,11 @@ invalidate the `import_economics` meta stamp even though the Python file
 itself didn't change.
 
 The full set of source files contributing to the meta stamp SHA (the Python
-importer, the Rust brand binary sources, `tooling/schema_version.py`, and the
-authored economics TOMLs) is registered in the `GENERATOR_SOURCES` dict at the
-top of `tooling/check-systems-db-stamp` — that dict is the single source of
-truth, mirrored by `IMPORT_ECONOMICS_SOURCES` in `import_economics.py`.
+importer entrypoint + its `economy_import` module package, the Rust brand
+binary sources, `tooling/schema_version.py`, the authored economics TOMLs, and
+the registry itself) is defined once in `tooling/generator_sources.py` (T-1067)
+— imported by both the importer's stamp writer and `check-systems-db-stamp`,
+and listed via `python3 tooling/generator_sources.py --list`.
 
 The surviving planet-gen importers (`import_heightmaps`,
 `import_province_boundaries`) are one-time build imports baked into the
@@ -122,9 +123,11 @@ automatically before pushing.
 
 The check script is `tooling/check-systems-db-stamp`.  Run it interactively with
 `make check-systems-db` or `python3 tooling/check-systems-db-stamp --verbose`.  The
-`GENERATOR_SOURCES` dict at the top of that script is the single registry — when
-you add a new generator or source file, update it there and mirror the change in
-the `/pr-push` skill's source-file watch list.
+`GENERATOR_SOURCES` dict in `tooling/generator_sources.py` is the single registry
+(T-1067) — the check script and the importer's stamp writer both import it, and
+the `/pr-push` skill derives its source-file watch list from
+`python3 tooling/generator_sources.py --list`.  When you add a new generator or
+source file, register it there and nowhere else.
 
 ---
 

.claude/skills/pr-process/SKILL.md

@@ -219,24 +219,23 @@ If clean, continue.
 Check whether any file in the **source-file watch list** was modified on this branch
 versus `origin/main`. This list covers generator code AND the data files that feed them.
 
-The generator-source paths below **must stay in sync** with `GENERATOR_SOURCES` in
-`tooling/check-systems-db-stamp` (PR #136 review T7) — if you add a new source file
-to the stamp, add it here too, and vice versa. Drift between the two lists reintroduces
-exactly the silent-stale-DB class of bug this skill exists to prevent.
+The stamped generator sources come from the shared registry
+`tooling/generator_sources.py` (T-1067) — the same module the stamp writer and
+`tooling/check-systems-db-stamp` use, so the lists can no longer drift (PR #136
+review T7). The CLI call below expands to one repo-relative path per line; the
+extra hardcoded entries are non-stamped watch items (retired/one-time planet-gen
+importers, the schema DDL whose SHA is stamped separately, and the data
+directories that feed the generators).
 
 ```bash
 git diff --name-only origin/main...HEAD -- \
-  tooling/economy-db/import_economics.py \
+  $(python3 tooling/generator_sources.py --list) \
   tooling/planet-gen/generate_atlas.py \
   tooling/planet-gen/gemma_naming.py \
   tooling/planet-gen/naming_core.py \
   tooling/planet-gen/import_city_names.py \
   tooling/planet-gen/import_heightmaps.py \
   tooling/planet-gen/import_province_boundaries.py \
-  server/src/bin/generate_brands/main.rs \
-  server/src/bin/generate_brands/names.rs \
-  server/src/bin/shared/surname_corpus.rs \
-  tooling/generate-brands \
   server/data/systems-schema.sql \
   wiki/star-systems/ \
   wiki/economics/ \