docs(meta): record M1 test results in milestone doc

All 7 implementation tasks pass. All 7 static validation checks pass.
ck3-tiger: 0 fatal, 0 errors, 0 untidy. In-game testing remains as
the final step.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/milestones/M1-foundation.md

@@ -10,11 +10,11 @@
 
 ## Current State
 
-The mod has a strong skeleton but several issues prevent a clean boot and
-playthrough. All critical issues from the original review have been resolved
-(trait name mismatches, missing event namespaces, `@#` comment syntax, missing
-modifiers, province history, bookmark). However, warning-level issues remain
-that must be fixed before M2 work can begin safely.
+All M1 implementation tasks are complete. The mod has a clean skeleton with
+zero ck3-tiger errors, zero untidy warnings, and all static validation checks
+passing. The remaining ck3-tiger warnings (335) are expected province
+redefinitions, auto-generated MaA formats, and not-yet-generated art assets.
+In-game testing is the final step before declaring M1 done.
 
 **What exists and works:**
 - `common/modifiers/00_mistborn_modifiers.txt` -- all 7 modifier definitions
@@ -480,6 +480,47 @@ display errors in-game.
 - All localization keys for modifiers, game rules, and decisions resolve
   correctly (no `[KEY]` display).
 
+## Test Results
+
+### Implementation Tasks — Status (2026-02-07)
+
+| Task | Status | Notes |
+|------|--------|-------|
+| 1.1 Province History | PASS | 105 provinces remapped to vanilla IDs (2030-3107); 2,413 default province entries for unused vanilla provinces |
+| 1.2 Culture Pillars | PASS | All pillars have `type`, `is_shown`, `color`; `head_determination` added to all cultures |
+| 1.3 Scripted Triggers | PASS | `is_feruchemist_trigger` matches only active; `has_allomantic_potential_trigger` excludes active allomancers; `has_any_*` variants exist |
+| 1.4 Unified Attention | PASS | Variable-based system (0-100) with tiered modifiers; zero references to `lord_ruler_attention_modifier` |
+| 1.5 Vanilla Suppression | PASS | 34 vanilla decision files suppressed; only Mistborn decisions remain |
+| 1.6 Game Rules | PASS | `mistborn_game_mode` with narrative/sandbox; mode triggers integrated |
+| 1.7 Localization Coverage | PASS | All 47 modifiers, game rules, opinion modifiers localized |
+
+### Static Validation Checks (2026-02-07)
+
+| Check | Result | Notes |
+|-------|--------|-------|
+| Encoding audit (UTF-8 BOM) | PASS | All 94 .txt/.yml files have correct 3-byte BOM |
+| Comment syntax (`@#`) | PASS | No invalid comment prefixes |
+| Brace matching | PASS | All .txt files balanced |
+| Trait reference integrity | PASS | All 26 trait references resolve to definitions |
+| Modifier reference integrity | PASS | All 13 modifier references resolve |
+| Event reference integrity | PASS | All 13 event references resolve to existing files |
+| Mod descriptor | PASS | `lords-of-ash.mod` path field correct |
+
+### ck3-tiger Static Analysis (2026-02-07)
+
+```
+fatal: 0, error: 0, warning: 335, untidy: 0, tips: 0
+```
+
+Remaining 335 warnings are all expected/deferred:
+- 290 duplicate-field/item: mod provinces intentionally override vanilla
+- 30 missing-item: auto-generated MaA modifier formats (26) + dynasty CoAs (4)
+- 15 missing-file: art assets not yet generated
+
+### In-Game Testing
+
+Requires human player — see Testing Checkpoints above. Not yet performed.
+
 ## Risks & Mitigations
 
 1. **Province ID mapping errors.** If any vanilla province ID is wrong, the