fix: handle Windows drive-letter paths across the codebase (#148)

* Add metrics collection and terminal performance tests

* fix: handle Windows drive-letter paths across the codebase

Windows paths like C:\Users\foo\project were broken in multiple places:
- agent-storage slugified D:\MyProject as D:-MyProject (illegal colon)
- terminal-manager rejected all non-/ paths as relative
- bootstrap parser misparsed drive colons as TCP host:port
- daemon/client connection helpers misclassified Windows paths
- CLI cwd filtering used hardcoded / separators
- checkout-git worktree detection used hardcoded / in path checks
- worktree archive used split("/").pop() instead of path.basename()

All path helpers now normalize separators and handle Windows
drive letters with case-insensitive comparison where needed.

packages/cli/tests/28-client-ipc-targets.test.ts

@@ -41,6 +41,13 @@ console.log("=== CLI IPC Target Helpers ===\n");
   console.log("✓ local unix socket paths normalize into IPC daemon targets\n");
 }
 
+{
+  console.log("Test 3b: Windows absolute paths are NOT treated as unix sockets");
+  assert.strictEqual(normalizeDaemonHost("C:\\Users\\foo\\.paseo\\paseo.sock"), null);
+  assert.strictEqual(normalizeDaemonHost("D:\\project\\socket"), null);
+  console.log("✓ Windows absolute paths are not treated as unix sockets\n");
+}
+
 {
   console.log("Test 4: default host resolution tries local IPC first, then localhost fallback");
   const paseoHome = mkdtempSync(path.join(os.tmpdir(), "paseo-client-targets-"));