feat: port OpenClaw bidirectional integration from omx

Ports the complete OpenClaw integration system from oh-my-codex:

Outbound (opencode→OpenClaw):
- wakeOpenClaw() fire-and-forget gateway notifications
- HTTP and command gateway dispatchers
- Template variable interpolation
- Config from oh-my-opencode.jsonc (no env gate needed)

Inbound (OpenClaw→opencode):
- Reply listener daemon (Discord/Telegram polling)
- Session registry for message↔tmux pane correlation
- Tmux pane detection, content capture, and text injection
- Input sanitization and rate limiting
- Pane verification before injection

Files:
- src/openclaw/ (types, config, dispatcher, index, reply-listener, session-registry, tmux, daemon)
- src/config/schema/openclaw.ts (Zod v4 schema)
- src/hooks/openclaw.ts (session hook)
- Tests: 12 pass (config + dispatcher)

src/openclaw/types.ts

@@ -0,0 +1,42 @@
+import type { OpenClawConfig, OpenClawGateway, OpenClawHook } from "../config/schema/openclaw"
+
+export type { OpenClawConfig, OpenClawGateway, OpenClawHook }
+
+export interface OpenClawContext {
+  sessionId?: string
+  projectPath?: string
+  projectName?: string
+  tmuxSession?: string
+  prompt?: string
+  contextSummary?: string
+  reasoning?: string
+  question?: string
+  tmuxTail?: string
+  replyChannel?: string
+  replyTarget?: string
+  replyThread?: string
+  [key: string]: string | undefined
+}
+
+export interface OpenClawPayload {
+  event: string
+  instruction: string
+  text: string
+  timestamp: string
+  sessionId?: string
+  projectPath?: string
+  projectName?: string
+  tmuxSession?: string
+  tmuxTail?: string
+  channel?: string
+  to?: string
+  threadId?: string
+  context: OpenClawContext
+}
+
+export interface WakeResult {
+  gateway: string
+  success: boolean
+  error?: string
+  statusCode?: number
+}