feat: Add DevLoop automation and HTML Reports

## DevLoop - Closed-Loop Development System
- Orchestrator for plan → build → test → analyze cycle
- Gemini planning via OpenCode CLI
- Claude implementation via CLI bridge
- Playwright browser testing integration
- Test runner with API, filesystem, and browser tests
- Persistent state in .devloop/ directory
- CLI tool: tools/devloop_cli.py

Usage:
  python tools/devloop_cli.py start 'Create new feature'
  python tools/devloop_cli.py plan 'Fix bug in X'
  python tools/devloop_cli.py test --study support_arm
  python tools/devloop_cli.py browser --level full

## HTML Reports (optimization_engine/reporting/)
- Interactive Plotly-based reports
- Convergence plot, Pareto front, parallel coordinates
- Parameter importance analysis
- Self-contained HTML (offline-capable)
- Tailwind CSS styling

## Playwright E2E Tests
- Home page tests
- Test results in test-results/

## LAC Knowledge Base Updates
- Session insights (failures, workarounds, patterns)
- Optimization memory for arm support study

.devloop/browser_test_results.json

@@ -0,0 +1,33 @@
+{
+  "timestamp": "2026-01-22T18:13:30.884945",
+  "scenarios": [
+    {
+      "scenario_id": "browser_home_stats",
+      "scenario_name": "Home page shows statistics",
+      "passed": true,
+      "duration_ms": 1413.166,
+      "error": null,
+      "details": {
+        "navigated_to": "http://localhost:3003/",
+        "found_selector": "text=Total Trials"
+      }
+    },
+    {
+      "scenario_id": "browser_expand_folder",
+      "scenario_name": "Topic folder expands on click",
+      "passed": true,
+      "duration_ms": 2785.3219999999997,
+      "error": null,
+      "details": {
+        "navigated_to": "http://localhost:3003/",
+        "found_selector": "span:has-text('completed'), span:has-text('running'), span:has-text('paused')",
+        "clicked": "button:has-text('trials')"
+      }
+    }
+  ],
+  "summary": {
+    "passed": 2,
+    "failed": 0,
+    "total": 2
+  }
+}

.devloop/current_plan.json

@@ -0,0 +1,16 @@
+{
+  "objective": "Implement Dashboard Intake & AtomizerSpec Integration: Phase 1 - Create backend intake API routes (create, introspect, list, topics endpoints) and spec_manager service. The spec_models.py and JSON schema have already been updated with SpecStatus, IntrospectionData, BaselineData, and ExpressionInfo models. Now need to create: 1) backend/api/services/spec_manager.py for centralized spec CRUD, 2) backend/api/routes/intake.py with endpoints for creating inbox folders, running introspection, listing inbox contents, and listing topics, 3) Register the intake router in main.py. Reference the plan at docs/plans/DASHBOARD_INTAKE_ATOMIZERSPEC_INTEGRATION.md",
+  "approach": "Fallback plan - manual implementation",
+  "tasks": [
+    {
+      "id": "task_001",
+      "description": "Implement: Implement Dashboard Intake & AtomizerSpec Integration: Phase 1 - Create backend intake API routes (create, introspect, list, topics endpoints) and spec_manager service. The spec_models.py and JSON schema have already been updated with SpecStatus, IntrospectionData, BaselineData, and ExpressionInfo models. Now need to create: 1) backend/api/services/spec_manager.py for centralized spec CRUD, 2) backend/api/routes/intake.py with endpoints for creating inbox folders, running introspection, listing inbox contents, and listing topics, 3) Register the intake router in main.py. Reference the plan at docs/plans/DASHBOARD_INTAKE_ATOMIZERSPEC_INTEGRATION.md",
+      "file": "TBD",
+      "priority": "high"
+    }
+  ],
+  "test_scenarios": [],
+  "acceptance_criteria": [
+    "Implement Dashboard Intake & AtomizerSpec Integration: Phase 1 - Create backend intake API routes (create, introspect, list, topics endpoints) and spec_manager service. The spec_models.py and JSON schema have already been updated with SpecStatus, IntrospectionData, BaselineData, and ExpressionInfo models. Now need to create: 1) backend/api/services/spec_manager.py for centralized spec CRUD, 2) backend/api/routes/intake.py with endpoints for creating inbox folders, running introspection, listing inbox contents, and listing topics, 3) Register the intake router in main.py. Reference the plan at docs/plans/DASHBOARD_INTAKE_ATOMIZERSPEC_INTEGRATION.md"
+  ]
+}

.devloop/test_results.json

@@ -0,0 +1,64 @@
+{
+  "timestamp": "2026-01-22T21:10:54.742272",
+  "scenarios": [
+    {
+      "scenario_id": "test_study_dir",
+      "scenario_name": "Study directory exists: stage_3_arm",
+      "passed": true,
+      "duration_ms": 0.0,
+      "error": null,
+      "details": {
+        "path": "C:\\Users\\antoi\\Atomizer\\studies\\Stage3\\stage_3_arm",
+        "exists": true
+      }
+    },
+    {
+      "scenario_id": "test_spec",
+      "scenario_name": "AtomizerSpec is valid JSON",
+      "passed": true,
+      "duration_ms": 1.045,
+      "error": null,
+      "details": {
+        "valid_json": true
+      }
+    },
+    {
+      "scenario_id": "test_readme",
+      "scenario_name": "README exists",
+      "passed": true,
+      "duration_ms": 0.0,
+      "error": null,
+      "details": {
+        "path": "C:\\Users\\antoi\\Atomizer\\studies\\Stage3\\stage_3_arm\\README.md",
+        "exists": true
+      }
+    },
+    {
+      "scenario_id": "test_run_script",
+      "scenario_name": "run_optimization.py exists",
+      "passed": true,
+      "duration_ms": 0.0,
+      "error": null,
+      "details": {
+        "path": "C:\\Users\\antoi\\Atomizer\\studies\\Stage3\\stage_3_arm\\run_optimization.py",
+        "exists": true
+      }
+    },
+    {
+      "scenario_id": "test_model_dir",
+      "scenario_name": "Model directory exists",
+      "passed": true,
+      "duration_ms": 0.0,
+      "error": null,
+      "details": {
+        "path": "C:\\Users\\antoi\\Atomizer\\studies\\Stage3\\stage_3_arm\\1_setup\\model",
+        "exists": true
+      }
+    }
+  ],
+  "summary": {
+    "passed": 5,
+    "failed": 0,
+    "total": 5
+  }
+}