feat(tools): add glob tool with timeout protection

- Override OpenCode's built-in glob with 60s timeout
- Kill process on expiration to prevent indefinite hanging
- Reuse grep's CLI resolver for ripgrep detection

Generated by [OpenCode](https://opencode.ai/)

src/tools/glob/utils.ts

@@ -0,0 +1,26 @@
+import type { GlobResult } from "./types"
+
+export function formatGlobResult(result: GlobResult): string {
+  if (result.error) {
+    return `Error: ${result.error}`
+  }
+
+  if (result.files.length === 0) {
+    return "No files found"
+  }
+
+  const lines: string[] = []
+  lines.push(`Found ${result.totalFiles} file(s)`)
+  lines.push("")
+
+  for (const file of result.files) {
+    lines.push(file.path)
+  }
+
+  if (result.truncated) {
+    lines.push("")
+    lines.push("(Results are truncated. Consider using a more specific path or pattern.)")
+  }
+
+  return lines.join("\n")
+}