fix: resolve all pre-existing test failures

- container-runner.ts: replace dynamic require('child_process') with static
  import so vi.mock() intercepts execSync in tests
- container-runner.test.ts: add execSync mock to child_process stub
- telegram.test.ts: add setMyCommands to mock bot api (already in previous commit)

All 32 test files, 448 tests now pass locally.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: b1rdmania

src/container-runner.test.ts

@@ -71,6 +71,7 @@ vi.mock('child_process', async () => {
   return {
     ...actual,
     spawn: vi.fn(() => fakeProc),
+    execSync: vi.fn(() => ''),
     exec: vi.fn(
       (_cmd: string, _opts: unknown, cb?: (err: Error | null) => void) => {
         if (cb) cb(null);

src/container-runner.ts

@@ -2,7 +2,7 @@
  * Agent Runner for GhostClaw
  * Spawns agent execution as direct Node.js processes (no containers)
  */
-import { ChildProcess, spawn } from 'child_process';
+import { ChildProcess, spawn, execSync } from 'child_process';
 import fs from 'fs';
 import path from 'path';
 
@@ -194,7 +194,6 @@ function getAgentRunnerEntrypoint(): string {
 
   if (!fs.existsSync(distEntry)) {
     logger.info('Agent runner not compiled, compiling now...');
-    const { execSync } = require('child_process');
     execSync('npx tsc', { cwd: agentRunnerRoot, stdio: 'pipe' });
   }