feat: 支持自托管的 remote-control-server (#214)

* feat: 支持自托管的 remote-control-server (#214)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

src/bridge/rcDebugLog.ts

@@ -0,0 +1,39 @@
+/**
+ * File-based debug logger for Remote Control bridge diagnostics.
+ * Writes [RC-DEBUG] lines to ~/.claude/rc-debug.log so they survive
+ * Ink's stdout capture in the REPL / bridge UI.
+ */
+import { appendFileSync, mkdirSync, existsSync } from 'node:fs'
+import { homedir } from 'node:os'
+import { join } from 'node:path'
+
+const LOG_PATH = join(homedir(), '.claude', 'rc-debug.log')
+
+function ensureLogDir() {
+  const dir = join(homedir(), '.claude')
+  if (!existsSync(dir)) mkdirSync(dir, { recursive: true })
+}
+
+let headerWritten = false
+
+export function rcLog(msg: string): void {
+  try {
+    if (!headerWritten) {
+      ensureLogDir()
+      appendFileSync(LOG_PATH, `\n===== RC-DEBUG session ${new Date().toISOString()} =====\n`)
+      headerWritten = true
+    }
+    const ts = new Date().toISOString().slice(11, 23) // HH:mm:ss.SSS
+    appendFileSync(LOG_PATH, `[${ts}] ${msg}\n`)
+  } catch {
+    // best-effort — never crash the bridge
+  }
+}
+
+/** Clear the log file at session start. */
+export function rcLogClear(): void {
+  try {
+    ensureLogDir()
+    appendFileSync(LOG_PATH, '')
+  } catch {}
+}