feat: add LoRa Manager E2E testing skill documentation

Introduce comprehensive documentation for the new `lora-manager-e2e` skill, which provides end-to-end testing workflows for LoRa Manager. The skill enables automated validation of standalone mode, including server management, UI interaction via Chrome DevTools MCP, and frontend-to-backend integration testing.

Key additions:
- Detailed skill description and prerequisites
- Quick start workflow for server setup and browser debugging
- Common E2E test patterns for page load verification, server restart, and API testing
- Example test flows demonstrating step-by-step validation procedures
- Scripts and MCP command examples for practical implementation

This documentation supports automated testing of LoRa Manager's web interface and backend functionality, ensuring reliable end-to-end validation of features.

.agents/skills/lora-manager-e2e/scripts/example_e2e_test.py

@@ -0,0 +1,193 @@
+#!/usr/bin/env python3
+"""
+Example E2E test demonstrating LoRa Manager testing workflow.
+
+This script shows how to:
+1. Start the standalone server
+2. Use Chrome DevTools MCP to interact with the UI
+3. Verify functionality end-to-end
+
+Note: This is a template. Actual execution requires Chrome DevTools MCP.
+"""
+
+import subprocess
+import sys
+import time
+
+
+def run_test():
+    """Run example E2E test flow."""
+    
+    print("=" * 60)
+    print("LoRa Manager E2E Test Example")
+    print("=" * 60)
+    
+    # Step 1: Start server
+    print("\n[1/5] Starting LoRa Manager standalone server...")
+    result = subprocess.run(
+        [sys.executable, "start_server.py", "--port", "8188", "--wait", "--timeout", "30"],
+        capture_output=True,
+        text=True
+    )
+    if result.returncode != 0:
+        print(f"Failed to start server: {result.stderr}")
+        return 1
+    print("Server ready!")
+    
+    # Step 2: Open Chrome (manual step - show command)
+    print("\n[2/5] Open Chrome with debug mode:")
+    print("google-chrome --remote-debugging-port=9222 --user-data-dir=/tmp/chrome-lora-manager http://127.0.0.1:8188/loras")
+    print("(In actual test, this would be automated via MCP)")
+    
+    # Step 3: Navigate and verify page load
+    print("\n[3/5] Page Load Verification:")
+    print("""
+    MCP Commands to execute:
+    1. navigate_page(type="url", url="http://127.0.0.1:8188/loras")
+    2. wait_for(text="LoRAs", timeout=10000)
+    3. snapshot = take_snapshot()
+    """)
+    
+    # Step 4: Test search functionality
+    print("\n[4/5] Search Functionality Test:")
+    print("""
+    MCP Commands to execute:
+    1. fill(uid="search-input", value="test")
+    2. press_key(key="Enter")
+    3. wait_for(text="Results", timeout=5000)
+    4. result = evaluate_script(function="""
+        () => {
+            const cards = document.querySelectorAll('.lora-card');
+            return { count: cards.length };
+        }
+        """)
+    """)
+    
+    # Step 5: Verify API
+    print("\n[5/5] API Verification:")
+    print("""
+    MCP Commands to execute:
+    1. api_result = evaluate_script(function="""
+        async () => {
+            const response = await fetch('/loras/api/list');
+            const data = await response.json();
+            return { count: data.length, status: response.status };
+        }
+        """)
+    2. Verify api_result['status'] == 200
+    """)
+    
+    print("\n" + "=" * 60)
+    print("Test flow completed!")
+    print("=" * 60)
+    
+    return 0
+
+
+def example_restart_flow():
+    """Example: Testing configuration change that requires restart."""
+    
+    print("\n" + "=" * 60)
+    print("Example: Server Restart Flow")
+    print("=" * 60)
+    
+    print("""
+    Scenario: Change setting and verify after restart
+    
+    Steps:
+    1. Navigate to settings page
+       - navigate_page(type="url", url="http://127.0.0.1:8188/settings")
+    
+    2. Change a setting (e.g., theme)
+       - fill(uid="theme-select", value="dark")
+       - click(uid="save-settings-button")
+    
+    3. Restart server
+       - subprocess.run([python, "start_server.py", "--restart", "--wait"])
+    
+    4. Refresh browser
+       - navigate_page(type="reload", ignoreCache=True)
+       - wait_for(text="LoRAs", timeout=15000)
+    
+    5. Verify setting persisted
+       - navigate_page(type="url", url="http://127.0.0.1:8188/settings")
+       - theme = evaluate_script(function="() => document.querySelector('#theme-select').value")
+       - assert theme == "dark"
+    """)
+
+
+def example_modal_interaction():
+    """Example: Testing modal dialog interaction."""
+    
+    print("\n" + "=" * 60)
+    print("Example: Modal Dialog Interaction")
+    print("=" * 60)
+    
+    print("""
+    Scenario: Add new LoRA via modal
+    
+    Steps:
+    1. Open modal
+       - click(uid="add-lora-button")
+       - wait_for(text="Add LoRA", timeout=3000)
+    
+    2. Fill form
+       - fill_form(elements=[
+           {"uid": "lora-name", "value": "Test Character"},
+           {"uid": "lora-path", "value": "/models/test.safetensors"},
+       ])
+    
+    3. Submit
+       - click(uid="modal-submit-button")
+    
+    4. Verify success
+       - wait_for(text="Successfully added", timeout=5000)
+       - snapshot = take_snapshot()
+    """)
+
+
+def example_network_monitoring():
+    """Example: Network request monitoring."""
+    
+    print("\n" + "=" * 60)
+    print("Example: Network Request Monitoring")
+    print("=" * 60)
+    
+    print("""
+    Scenario: Verify API calls during user interaction
+    
+    Steps:
+    1. Clear network log (implicit on navigation)
+       - navigate_page(type="url", url="http://127.0.0.1:8188/loras")
+    
+    2. Perform action that triggers API call
+       - fill(uid="search-input", value="character")
+       - press_key(key="Enter")
+    
+    3. List network requests
+       - requests = list_network_requests(resourceTypes=["xhr", "fetch"])
+    
+    4. Find search API call
+       - search_requests = [r for r in requests if "/api/search" in r.get("url", "")]
+       - assert len(search_requests) > 0, "Search API was not called"
+    
+    5. Get request details
+       - if search_requests:
+           details = get_network_request(reqid=search_requests[0]["reqid"])
+           - Verify request method, response status, etc.
+    """)
+
+
+if __name__ == "__main__":
+    print("LoRa Manager E2E Test Examples\n")
+    print("This script demonstrates E2E testing patterns.\n")
+    print("Note: Actual execution requires Chrome DevTools MCP connection.\n")
+    
+    run_test()
+    example_restart_flow()
+    example_modal_interaction()
+    example_network_monitoring()
+    
+    print("\n" + "=" * 60)
+    print("All examples shown!")
+    print("=" * 60)