AI Plan Generation. Clear button sets focus

specs/requirements.md

@@ -64,6 +64,23 @@ Users can structure their training via Plans.
     *   **Logic**: Supports reordering capabilities via drag-and-drop in UI.
 *   **3.2.2 Plan Deletion**
     *   Standard soft or hard delete (Cascades to PlanExercises).
+*   **3.2.3 AI Plan Creation**
+    *   **Trigger**: "Create with AI" option in Plans FAB Menu, or "Ask your AI coach" link from Tracker (when no plans exist).
+    *   **UI Flow**:
+        *   Opens a dedicated Side Sheet in the Plans view.
+        *   User enters a text prompt describing desired workout (e.g., "Create a 20-minute HIIT workout").
+        *   "Generate" button initiates AI call.
+    *   **AI Logic**:
+        *   System sends prompt to AI service (`geminiService`).
+        *   AI returns a structured JSON object containing: `name`, `description`, and `exercises` array.
+        *   Each exercise object contains: `name`, `isWeighted` (boolean), `restTimeSeconds` (number).
+        *   For **new exercises** (not in user's library), AI also provides: `type` ('reps' or 'time'), `unilateral` (boolean).
+    *   **Auto-Creation of Exercises**:
+        *   System parses AI response.
+        *   For each exercise in the response, checks if it exists in the user's exercise library by name.
+        *   If not found, creates a new `Exercise` record with AI-provided attributes (type, unilateral flag) via `saveExercise`.
+        *   Links the new/existing exercise ID to the plan step.
+    *   **Result**: Saves the generated `WorkoutPlan` to DB and displays it in the Plans list.
 
 ### 3.3. Exercise Library
 *   **3.3.1 Exercise Types**