MAESTRO: Add OpenClaw plugin entry point with service and command registration

Creates openclaw/src/index.ts with:
- Inline OpenClawPluginApi interface definition
- registerService for claude-mem-observation-feed (stub start/stop for Phase 2)
- registerCommand for /claude-mem-feed status command
- Plugin initialization logging

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

openclaw/src/index.ts

@@ -0,0 +1,52 @@
+interface OpenClawPluginApi {
+  getConfig: () => Record<string, any>;
+  log: (message: string) => void;
+  registerService: (service: {
+    id: string;
+    start: (ctx: any) => Promise<void>;
+    stop: (ctx: any) => Promise<void>;
+  }) => void;
+  registerCommand: (command: {
+    name: string;
+    description: string;
+    handler: (args: string[], ctx: any) => Promise<string>;
+  }) => void;
+  runtime: {
+    channel: Record<string, Record<string, (to: string, text: string) => Promise<any>>>;
+  };
+}
+
+export default function claudeMemPlugin(api: OpenClawPluginApi): void {
+  api.registerService({
+    id: "claude-mem-observation-feed",
+    start: async (ctx) => {
+      const config = api.getConfig();
+      const feedConfig = config.observationFeed as any;
+      if (!feedConfig?.enabled) {
+        api.log("[claude-mem] Observation feed disabled");
+        return;
+      }
+      api.log(`[claude-mem] Observation feed starting — channel: ${feedConfig.channel}, target: ${feedConfig.to}`);
+      // SSE connection logic added in Phase 2
+    },
+    stop: async (ctx) => {
+      api.log("[claude-mem] Observation feed stopping");
+      // SSE disconnect logic added in Phase 2
+    }
+  });
+
+  api.registerCommand({
+    name: "claude-mem-feed",
+    description: "Show or toggle Claude-Mem observation feed status",
+    handler: async (args, ctx) => {
+      const config = api.getConfig();
+      const feedConfig = config.observationFeed as any;
+      if (!feedConfig) {
+        return "Observation feed not configured. Add observationFeed to your plugin config.";
+      }
+      return `Claude-Mem Observation Feed\nEnabled: ${feedConfig.enabled ? "yes" : "no"}\nChannel: ${feedConfig.channel || "not set"}\nTarget: ${feedConfig.to || "not set"}`;
+    }
+  });
+
+  api.log("[claude-mem] OpenClaw plugin loaded — v1.0.0");
+}