fix: prevent conversion system from auto-unlocking all mana types on first tick

- Removed auto-unlock lines in gameStore.ts element regen loop and recovery room boost loop
- Added unlocked guard to skip locked elements during conversion processing
- Added regression test (bug-377) verifying only transference stays unlocked

Fixes #377

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-12T07:45:32.728Z
+Generated: 2026-06-12T08:05:45.261Z
 Found: 4 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. 1) data/guardian-encounters.ts > data/guardian-procedural.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-12T07:45:30.561Z",
+    "generated": "2026-06-12T08:05:43.098Z",
     "description": "Import dependency graph for src/lib/game. Keys are files, values are arrays of files they import.",
     "usage": "To find what a file affects, search for its path in the VALUES. To find what a file depends on, look at its KEY entry."
   },

docs/project-structure.txt

@@ -203,6 +203,7 @@ Mana-Loop/
 │   │   │   │   ├── bug-352-golem-mana-wipe.test.ts
 │   │   │   │   ├── bug-353-preparation-mana.test.ts
 │   │   │   │   ├── bug-354-unlock-attunement.test.ts
+│   │   │   │   ├── bug-377-mana-auto-unlock.test.ts
 │   │   │   │   ├── bug-fixes.test.ts
 │   │   │   │   ├── combat-actions.test.ts
 │   │   │   │   ├── combat-utils.test.ts