Rest timer polishing. Rest timer sets done

specs/gymflow-test-plan.md

@@ -565,6 +565,60 @@ Comprehensive test plan for the GymFlow web application, covering authentication
 **Expected Results:**
   - Each set is logged with the correct specific metric (Height, Distance, Duration, etc.).
 
+#### 3.16. C. Rest Timer - Manual Edit & Validation
+
+**File:** `tests/rest-timer.spec.ts`
+
+**Steps:**
+  1. Start a Free Workout (or Quick Log).
+  2. Expand the Rest Timer FAB.
+  3. Click 'Edit'.
+  4. Type '90' -> Verify '1:30' (if auto-format implemented) or manual '1:30'.
+  5. Attempt to type non-digits -> Verify they are ignored.
+  6. Attempt to type '10:99' (invalid seconds) -> Verify it corrects to '10:59'.
+  7. Save.
+
+**Expected Results:**
+  - Input field accepts only valid characters.
+  - Seconds are clamped to 59.
+  - Timer value updates correctly upon save.
+
+#### 3.17. C. Rest Timer - Context & Persistence
+
+**File:** `tests/rest-timer.spec.ts`
+
+**Steps:**
+  1. Start a Free Workout (Idle Timer defaults to 2:00 or user profile setting).
+  2. Edit timer to '0:45'.
+  3. Start timer.
+  4. Quit session (or navigate to Quick Log).
+  5. Start Quick Log (or new Free Session).
+  6. Verify timer default is now '0:45'.
+
+**Expected Results:**
+  - Timer value persists across different session modes (active to sporadic).
+  - Last manually set value becomes the new default for manual modes.
+
+#### 3.18. C. Rest Timer - Plan Integration
+
+**File:** `tests/rest-timer.spec.ts`
+
+**Steps:**
+  1. Create a Plan with Step A (Rest: 30s) and Step B (Rest: 60s).
+  2. Start the Plan.
+  3. Verify Timer shows '0:30'. Start it.
+  4. Log Set for Step A while timer is running.
+  5. Verify Timer continues running (does not reset).
+  6. Reset Timer manually (or wait for finish).
+  7. Verify Timer now shows '1:00' (for Step B).
+
+**Expected Results:**
+  - Timer accurately reflects specific rest times per step.
+  - Active timer is NOT interrupted by logging sets (smart non-reset).
+  - Timer updates duration to next step's rest time once idle/reset, but remains PAUSED/IDLE (does not auto-start).
+
+
+
 
 
 ### 4. IV. Data & Progress