feat(site): add Copilot CLI support to installation wizard (homeassistant-ai#909)

Add GitHub Copilot CLI as a new AI client in the setup wizard with:
- New client entry (copilot-cli.md) with stdio, SSE, and HTTP support
- Interactive /mcp add form instructions adapting for local vs remote
- New copilot-cli.svg logo
- Wizard config generation for both STDIO and HTTP server types

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: kingpanther13 <25392815+kingpanther13@users.noreply.github.com>

Author: 3 people

site/public/logos/copilot-cli.svg

@@ -0,0 +1,72 @@
+---
+name: Copilot CLI
+company: GitHub
+logo: /logos/copilot-cli.svg
+transports: ['stdio', 'sse', 'streamable-http']
+configFormat: ui
+configLocation: ~/.copilot/mcp-config.json
+accuracy: 5
+order: 6
+---
+
+## Configuration
+
+Copilot CLI supports MCP servers via the interactive `/mcp add` command. Supports Local, STDIO, HTTP, and SSE server types.
+
+### Adding an MCP Server
+
+1. Start Copilot CLI: `copilot`
+2. Use the `/mcp add` slash command
+3. Fill in the form fields using **Tab** to navigate between them
+4. Press **Ctrl+S** to save, or **Esc** to cancel
+
+### stdio Configuration (Local)
+
+Use these values in the `/mcp add` form:
+
+| Field | Value |
+|-------|-------|
+| Server Name | `home-assistant` |
+| Server Type | Press **2** for STDIO |
+| Command | `uvx ha-mcp@latest` |
+| Environment Variables | `HOMEASSISTANT_URL=http://homeassistant.local:8123 HOMEASSISTANT_TOKEN=your_token` |
+| Tools | `*` |
+
+### HTTP Configuration (Network/Remote)
+
+Use these values in the `/mcp add` form:
+
+| Field | Value |
+|-------|-------|
+| Server Name | `home-assistant` |
+| Server Type | Press **3** for HTTP |
+| URL | `{{MCP_SERVER_URL}}` |
+| Tools | `*` |
+
+### SSE Configuration (Network/Remote)
+
+| Field | Value |
+|-------|-------|
+| Server Name | `home-assistant` |
+| Server Type | Press **4** for SSE |
+| URL | `{{MCP_SERVER_URL}}` |
+| Tools | `*` |
+
+## Useful Commands
+
+```bash
+# Check MCP server status in an interactive session
+/mcp
+
+# Start Copilot CLI
+copilot
+```
+
+## Notes
+
+- Server Type options: 1 = Local, 2 = STDIO, 3 = HTTP, 4 = SSE
+- Environment variables format: `KEY=VALUE` pairs separated by spaces
+- Tools field: use `*` for all tools, or a comma-separated list
+- MCP server config stored in `~/.copilot/mcp-config.json`
+- Set `COPILOT_HOME` env var to change config directory
+- GitHub MCP server is included by default

site/src/content/clients/copilot-cli.md

@@ -1498,6 +1498,41 @@ mcpServers:
             <li>Click <strong>Save</strong></li>
           </ol>
         </div>`;
+      } else if (state.client.id === 'copilot-cli') {
+        if (isStdio) {
+          uiSteps = `<div class="instruction-block">
+            <h4 class="instruction-title">⚙️ Copilot CLI Configuration (STDIO)</h4>
+            <ol class="text-sm text-slate-300 space-y-2 list-decimal list-inside">
+              <li>Start Copilot CLI: <code class="bg-slate-800 px-1 rounded">copilot</code></li>
+              <li>Run the <code class="bg-slate-800 px-1 rounded">/mcp add</code> slash command</li>
+              <li>Fill in the form (use <strong>Tab</strong> to navigate, <strong>Ctrl+S</strong> to save):
+                <ul class="ml-6 mt-1 text-slate-400 list-disc list-inside space-y-1">
+                  <li>Server Name: <code class="bg-slate-800 px-1 rounded">home-assistant</code></li>
+                  <li>Server Type: Press <strong>2</strong> for STDIO</li>
+                  <li>Command: <code class="bg-slate-800 px-1 rounded">uvx ha-mcp@latest</code></li>
+                  <li>Environment Variables: <code class="bg-slate-800 px-1 rounded">HOMEASSISTANT_URL={{HOMEASSISTANT_URL}} HOMEASSISTANT_TOKEN={{HOMEASSISTANT_TOKEN}}</code></li>
+                  <li>Tools: <code class="bg-slate-800 px-1 rounded">*</code></li>
+                </ul>
+              </li>
+            </ol>
+          </div>`;
+        } else {
+          uiSteps = `<div class="instruction-block">
+            <h4 class="instruction-title">⚙️ Copilot CLI Configuration (HTTP)</h4>
+            <ol class="text-sm text-slate-300 space-y-2 list-decimal list-inside">
+              <li>Start Copilot CLI: <code class="bg-slate-800 px-1 rounded">copilot</code></li>
+              <li>Run the <code class="bg-slate-800 px-1 rounded">/mcp add</code> slash command</li>
+              <li>Fill in the form (use <strong>Tab</strong> to navigate, <strong>Ctrl+S</strong> to save):
+                <ul class="ml-6 mt-1 text-slate-400 list-disc list-inside space-y-1">
+                  <li>Server Name: <code class="bg-slate-800 px-1 rounded">home-assistant</code></li>
+                  <li>Server Type: Press <strong>3</strong> for HTTP</li>
+                  <li>URL: <code class="bg-slate-800 px-1 rounded">{{MCP_SERVER_URL}}</code></li>
+                  <li>Tools: <code class="bg-slate-800 px-1 rounded">*</code></li>
+                </ul>
+              </li>
+            </ol>
+          </div>`;
+        }
       }
       instructions.push(uiSteps);
     }