try and fix bad oauth cache

docs/TEST_COVERAGE_GAPS.md

@@ -211,7 +211,7 @@ These components are essential to registry operation and still need coverage.
 
 OAuth implementation has test files but many functions remain untested.
 
-#### refresher.go (Partial coverage)
+#### client.go - Session Management (Refresher) (Partial coverage)
 
 **Well-covered:**
 - `NewRefresher()` - 100% ✅
@@ -227,6 +227,8 @@ OAuth implementation has test files but many functions remain untested.
 - Session retrieval and caching
 - Token refresh flow
 - Concurrent refresh handling (per-DID locking)
+
+**Note:** Refresher functionality merged into client.go (previously separate refresher.go file)
 - Cache expiration
 - Error handling for failed refreshes
 
@@ -509,8 +511,9 @@ UI initialization and setup. Low priority.
 **In Progress:**
 9. 🔴 `pkg/appview/db/*` - Database layer (41.2%, needs improvement)
    - queries.go, session_store.go, device_store.go
-10. 🔴 `pkg/auth/oauth/refresher.go` - Token refresh (Partial → 70%+)
+10. 🔴 `pkg/auth/oauth/client.go` - Session management (Refresher) (Partial → 70%+)
     - `GetSession()`, `resumeSession()` (currently 0%)
+    - Note: Refresher merged into client.go
 11. 🔴 `pkg/auth/oauth/server.go` - OAuth endpoints (50.7%, continue improvements)
     - `ServeCallback()` at 16.3% needs major improvement
 12. 🔴 `pkg/appview/storage/crew.go` - Crew validation (11.1% → 80%+)