fix(test): Set HOSTNAME in dev server tests for consistent behavior

Dev server test was failing on non-localhost hostnames (e.g., 'fedora')
because it expected 'localhost' in the URL. Now sets HOSTNAME env var
in test setup and restores it in teardown for consistent test behavior
across all environments.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

apps/server/tests/unit/services/dev-server-service.test.ts

@@ -30,11 +30,16 @@ import net from 'net';
 
 describe('dev-server-service.ts', () => {
   let testDir: string;
+  let originalHostname: string | undefined;
 
   beforeEach(async () => {
     vi.clearAllMocks();
     vi.resetModules();
 
+    // Store and set HOSTNAME for consistent test behavior
+    originalHostname = process.env.HOSTNAME;
+    process.env.HOSTNAME = 'localhost';
+
     testDir = path.join(os.tmpdir(), `dev-server-test-${Date.now()}`);
     await fs.mkdir(testDir, { recursive: true });
 
@@ -56,6 +61,13 @@ describe('dev-server-service.ts', () => {
   });
 
   afterEach(async () => {
+    // Restore original HOSTNAME
+    if (originalHostname === undefined) {
+      delete process.env.HOSTNAME;
+    } else {
+      process.env.HOSTNAME = originalHostname;
+    }
+
     try {
       await fs.rm(testDir, { recursive: true, force: true });
     } catch {

apps/ui/src/components/ui/provider-icon.tsx

@@ -116,9 +116,8 @@ const PROVIDER_ICON_DEFINITIONS: Record<ProviderIconKey, ProviderIconDefinition>
   },
   copilot: {
     viewBox: '0 0 98 96',
-    // Official GitHub Octocat logo mark
+    // Official GitHub Octocat logo mark (theme-aware via currentColor)
     path: 'M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z',
-    fill: '#ffffff',
   },
 };