feat: wire 10 new tools — file_read, file_write, glob, grep, web_fetch, task CRUD, send_message, schedule_cron

- 10 new JS tool classes in src/tools/ (clean, no framework deps)
- tools/index.js: registry-based init with env toggles
- bot/index.js: 16 tool definitions + 16 handlers (was 4)
- Added glob npm dependency
- Tools: bash, file_edit, file_read, file_write, glob, grep, web_search, web_fetch, git, task_create/update/list, send_message, schedule_cron, delegate_agent, run_skill

src/tools/GrepTool.js

@@ -0,0 +1,38 @@
+import { logger } from '../utils/logger.js';
+import { execa } from 'execa';
+import path from 'path';
+
+export class GrepTool {
+  constructor() {
+    this.name = 'grep';
+    this.description = 'Search file contents using regex (ripgrep-backed)';
+  }
+
+  async execute(args) {
+    const { pattern, path: searchPath = '.', file_glob, max_results = 20, context: ctx = 0 } = args;
+    try {
+      const cmdArgs = [
+        '--max-count', String(max_results),
+        '--no-heading',
+        '--line-number',
+        ...(ctx > 0 ? ['-C', String(ctx)] : []),
+      ];
+      if (file_glob) cmdArgs.push('--glob', file_glob);
+
+      const targetPath = path.resolve(searchPath);
+      cmdArgs.push('--', pattern, targetPath);
+
+      const { stdout } = await execa('rg', cmdArgs, { timeout: 30000 });
+
+      if (!stdout.trim()) return `🔍 No matches for "${pattern}" in ${searchPath}`;
+
+      const lineCount = stdout.trim().split('\n').length;
+      const suffix = lineCount >= max_results ? `\n(truncated at ${max_results} matches)` : '';
+      return `🔍 ${lineCount} matches for "${pattern}" in ${searchPath}:${suffix}\n${stdout}`;
+    } catch (e) {
+      if (e.exitCode === 1) return `🔍 No matches for "${pattern}"`;
+      if (e.exitCode === 2) return `❌ Grep error: ${e.stderr || e.message}`;
+      return `❌ ${e.message}`;
+    }
+  }
+}