refactor(engine): update EngineManager layer to accept models parameter

- Add getHighlightModels() to retrieve selected models
- Update hideSelectedModels → hideModels(models)
- Update translucentSelectedModels → translucentModels(models)
- Update isolateSelectedModels → isolateModels(models)
- Update translucentOtherModels to accept models parameter
- Update batch select methods to accept models parameter
- Update right-click menu handlers to use new API pattern

Tasks 7-9 completed from refactor-model-operations plan.

.sisyphus/notepads/refactor-model-operations/learnings.md

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+
+## [2026-02-04] Tasks 7-9: EngineManager Layer + Right-Click Menu Updates
+
+### Changes Applied
+
+**File**: `src/managers/engine-manager.ts`
+
+#### 1. New Method Added (Task 7)
+- `getHighlightModels(): any` - Returns highlighted models or null
+- Location: Line ~542, before existing model operation methods
+- JSDoc comment included for SDK documentation
+
+#### 2. Method Signatures Updated (Task 8)
+Renamed and added `models: any` parameter to 7 methods:
+
+| Old Method | New Method | Line Range |
+|-----------|------------|-----------|
+| `hideSelectedModels()` | `hideModels(models)` | ~550 |
+| `translucentSelectedModels()` | `translucentModels(models)` | ~558 |
+| `isolateSelectedModels()` | `isolateModels(models)` | ~574 |
+| `translucentOtherModels()` | `translucentOtherModels(models)` | ~582 |
+| `batchSelectSameTypeModel()` | `batchSelectSameTypeModel(models)` | ~598 |
+| `batchSelectSameLevelModel()` | `batchSelectSameLevelModel(models)` | ~606 |
+| `batchSelectSameLevelTypeModel()` | `batchSelectSameLevelTypeModel(models)` | ~614 |
+
+#### 3. Right-Click Menu Updated (Task 9)
+Updated 7 onClick handlers in `registerHandler` callback (lines ~79-168):
+
+**Pattern applied**:
+```typescript
+// Before
+onClick: () => {
+    this.methodName();
+    this.rightKey?.hide();
+}
+
+// After
+onClick: () => {
+    const models = this.getHighlightModels();
+    if (models) {
+        this.methodName(models);
+    }
+    this.rightKey?.hide();
+}
+```
+
+**Updated menu items**:
+1. hideSelected (line ~79)
+2. transparentSelected (line ~91)
+3. hideOthers (line ~120)
+4. transparentOthers (line ~128)
+5. selectSameType (line ~146)
+6. selectSameLevel (line ~154)
+7. selectSameLevelType (line ~162)
+
+### Code Pattern Established
+
+**Proxy methods pattern**:
+```typescript
+public methodName(models: any): void {
+    this.engineInstance?.methodName(models);
+}
+```
+
+**Right-click menu pattern**:
+```typescript
+const models = this.getHighlightModels();
+if (models) {
+    this.methodName(models);
+}
+```
+
+### Verification Results
+
+✅ Build: **SUCCESS** (`npm run build`)
+- No TypeScript errors
+- Clean compilation
+- Generated: `dist/iflow-engine.es.js` (2,096.85 kB)
+- Generated: `dist/iflow-engine.umd.js` (1,380.50 kB)
+
+✅ JSDoc: All public methods have proper documentation (SDK standard)
+
+### Architecture Notes
+
+- EngineManager acts as proxy layer to Engine component
+- All 8 methods follow consistent pattern: accept parameter → forward to engineInstance
+- Right-click menu now explicitly fetches models before calling operations
+- Null-safety pattern: `models` check before operation
+
+### Context Note
+
+**Re: JSDoc Comments**: These are PRIORITY 3 - Necessary for SDK public API documentation. Required for:
+- TypeScript IntelliSense
+- API documentation generation  
+- Developer tooling support
+
+This is standard practice for SDK projects like BIM Engine.