feat: add SidecarManager actor pattern, SPKI pinning, btmsg seen_messages, Aider autonomous mode

Tribunal priorities 1-4: SidecarManager refactored to mpsc actor thread
(eliminates TOCTOU race), SPKI TOFU certificate pinning for relay TLS,
per-message btmsg acknowledgment via seen_messages table, Aider
autonomous mode toggle gating shell execution.

v2/vite.config.ts

@@ -9,6 +9,6 @@ export default defineConfig({
   },
   clearScreen: false,
   test: {
-    include: ['src/**/*.test.ts'],
+    include: ['src/**/*.test.ts', 'sidecar/**/*.test.ts'],
   },
 })