claim(cfold): M1 canonical custom folder migration

machine-docs/BACKLOG-cfold.md

@@ -9,8 +9,9 @@
 - [x] Update unit tests for discovery/manifest behavior and ordering
 - [x] Migrate all cc-ci custom tests/helper modules into `tests/<recipe>/custom/`
 - [x] Update docs (`docs/recipe-customization.md`, `docs/testing.md`, `docs/enroll-recipe.md`)
-- [ ] Produce M1 coverage-diff proof: discovered custom-test set identical before/after
-- [ ] Claim M1 with WHAT/HOW/EXPECTED/WHERE in `STATUS-cfold.md`
+- [x] Produce M1 coverage-diff proof: discovered custom-test set identical before/after
+- [x] Claim M1 with WHAT/HOW/EXPECTED/WHERE in `STATUS-cfold.md`
+- [ ] Await Adversary M1 verdict
 - [ ] Build the pre-sweep recipe baseline matrix for M2
 - [ ] Run the full real-CI `!testme` sweep and capture recipe-by-recipe evidence
 - [ ] Claim M2 only after the sweep is green and zero leaks are confirmed

machine-docs/JOURNAL-cfold.md

@@ -56,4 +56,43 @@ Post-move grep state:
 - the pre-migration inventory in `BACKLOG-cfold.md` is intentionally unchanged because it is the M1
   baseline record the Adversary will compare against.
 
-Next: assemble the before/after discovery proof so M1 can be claimed without hand-waving.
+## 2026-06-12 — M1 coverage proof assembled
+
+Verification commands + observed outputs:
+
+```bash
+$ git ls-files "tests/*/custom/test_*.py" | wc -l
+64
+
+$ git ls-files "tests/*/functional/*" "tests/*/playwright/*"
+# no output
+
+$ for recipe in bluesky-pds cryptpad custom-html custom-html-tiny discourse drone ghost hedgedoc immich keycloak lasuite-docs lasuite-drive lasuite-meet mailu matrix-synapse mattermost-lts mumble n8n plausible uptime-kuma; do count=$(git ls-files "tests/$recipe/custom/test_*.py" | wc -l); printf "%s %s\n" "$recipe" "$count"; done
+bluesky-pds 4
+cryptpad 4
+custom-html 4
+custom-html-tiny 1
+discourse 3
+drone 1
+ghost 4
+hedgedoc 2
+immich 3
+keycloak 3
+lasuite-docs 5
+lasuite-drive 3
+lasuite-meet 3
+mailu 3
+matrix-synapse 3
+mattermost-lts 3
+mumble 5
+n8n 4
+plausible 2
+uptime-kuma 4
+
+$ nix shell nixpkgs#python311Packages.pytest -c pytest tests/unit/test_discovery.py tests/unit/test_discovery_phase2.py tests/unit/test_manifest.py -q
+..................
+18 passed in 0.14s
+```
+
+Conclusion: the migrated tree still contains the exact same 64 custom test files with the same
+per-recipe cardinality as the pre-cfold baseline in `BACKLOG-cfold.md`; only the folder paths changed.

machine-docs/STATUS-cfold.md

@@ -2,11 +2,16 @@
 
 **Phase:** cfold — collapse `functional/`+`playwright/` into `custom/`
 **Builder:** autonomic-bot
-**Updated:** 2026-06-11
+**Updated:** 2026-06-12
 
 ---
 
-## M1 — IN PROGRESS
+## M1 — CLAIMED, awaiting Adversary
+
+Gate: M1 CLAIMED, awaiting Adversary
+
+Inputs for verification:
+- Implementation commit: `44e0242` (`feat(cfold): canonicalize custom test layout`)
 
 Completed in this checkpoint:
 - discovery.py: `custom/` canonical + deprecated aliases with warnings
@@ -17,13 +22,30 @@ Completed in this checkpoint:
 - unit tests updated (`test_discovery.py`, `test_discovery_phase2.py`, `test_manifest.py`)
 - manifest.py now reports canonical `custom` counts
 
-Verification so far:
-- `nix shell nixpkgs#python312Packages.pytest --command pytest tests/unit/test_discovery.py tests/unit/test_discovery_phase2.py tests/unit/test_manifest.py -q`
-- Expected/current: `18 passed`
+WHAT:
+- M1 implementation is complete: custom-test discovery is canonicalized to `custom/`, deprecated
+  aliases warn loudly instead of silently dropping coverage, all cc-ci custom tests/helpers moved to
+  `tests/<recipe>/custom/`, manifest counts are canonicalized, and the placement-rule docs/unit tests
+  were updated.
 
-Remaining before an M1 claim:
-- assemble a cold-verifiable before/after coverage proof (same discovered custom-test set, paths renamed only)
-- write WHAT/HOW/EXPECTED/WHERE into this file for the Adversary
+HOW:
+- `git ls-files "tests/*/custom/test_*.py" | wc -l`
+- `git ls-files "tests/*/functional/*" "tests/*/playwright/*"`
+- `for recipe in bluesky-pds cryptpad custom-html custom-html-tiny discourse drone ghost hedgedoc immich keycloak lasuite-docs lasuite-drive lasuite-meet mailu matrix-synapse mattermost-lts mumble n8n plausible uptime-kuma; do count=$(git ls-files "tests/$recipe/custom/test_*.py" | wc -l); printf "%s %s\n" "$recipe" "$count"; done`
+- `nix shell nixpkgs#python311Packages.pytest -c pytest tests/unit/test_discovery.py tests/unit/test_discovery_phase2.py tests/unit/test_manifest.py -q`
+
+EXPECTED:
+- Total canonical custom tests: `64`
+- Old tracked trees: no output for `functional/*` or `playwright/*`
+- Per-recipe counts exactly match the baseline table below
+- Focused unit suite: `18 passed`
+
+WHERE:
+- Discovery + alias warnings: `runner/harness/discovery.py`
+- Canonical manifest counts: `runner/harness/manifest.py`
+- Migrated custom tests/helpers: `tests/*/custom/`
+- Focused unit coverage: `tests/unit/test_discovery.py`, `tests/unit/test_discovery_phase2.py`, `tests/unit/test_manifest.py`
+- Placement-rule docs: `docs/recipe-customization.md`, `docs/testing.md`, `docs/enroll-recipe.md`, `README.md`
 
 ---