feat(cli-registry): GitHub Copilot CLI as a run mode

Copilot (`copilot`, npm @github/copilot) as a stock CLI entry with the same launch options as the other agent CLIs: model (--model), resume (--resume), continue (--continue) and allow-all (--yolo, clamped off for non-granted multi-user owners). Adds a resolver and GET /api/copilot/status probe, the agent-image package, Run-menu/mobile/logo entries, skill docs and tests.

test/location-overlay-commands.test.ts

@@ -36,6 +36,7 @@ it('pins every remote pane command', () => {
     grok: remoteLoginShellCommand('grok'),
     deepseek: remoteLoginShellCommand('dsh'),
     omp: remoteLoginShellCommand('omp'),
+    copilot: remoteLoginShellCommand('copilot'),
   };
   for (const [mode, want] of Object.entries(expected)) {
     expect(defaultRemoteCommandForMode(mode as SessionMode), mode).toBe(want);
@@ -55,6 +56,7 @@ it('pins every in-container pane command', () => {
     grok: 'exec grok',
     deepseek: 'exec dsh',
     omp: 'exec omp',
+    copilot: 'exec copilot',
   };
   for (const [mode, want] of Object.entries(expected)) {
     expect(defaultDockerCommandForMode(mode as SessionMode), mode).toBe(want);