feat: add Docker entrypoints, LLM providers, pipeline hardening, workbench pages

Phase 9 — four parallel workstreams:

- Stream A: 14 Docker entrypoints for containerized deployment
- Stream B: Pipeline hardening — robust JSON parsing, LLM retry logic,
  consumer negative-ack, FalkorDB test import fix
- Stream C: Azure OpenAI, OpenAI-compatible, and Mistral LLM providers
- Stream D: Workbench Prompts, Token Cost, Knowledge Cores pages +
  Settings feature switches

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ts/packages/workbench/src/hooks/use-prompts.ts

@@ -0,0 +1,50 @@
+import { useCallback, useEffect, useState } from "react";
+import { useSocket } from "@/providers/socket-provider";
+import { useConnectionState } from "@/providers/socket-provider";
+
+export function usePrompts() {
+  const socket = useSocket();
+  const connectionState = useConnectionState();
+  const [prompts, setPrompts] = useState<Array<{ id: string; name?: string; description?: string }>>([]);
+  const [systemPrompt, setSystemPrompt] = useState<string>("");
+  const [loading, setLoading] = useState(false);
+
+  const loadPrompts = useCallback(async () => {
+    try {
+      setLoading(true);
+      const list = await socket.config().getPrompts();
+      setPrompts(Array.isArray(list) ? list : []);
+    } catch (err) {
+      console.error("Failed to load prompts:", err);
+    } finally {
+      setLoading(false);
+    }
+  }, [socket]);
+
+  const loadSystemPrompt = useCallback(async () => {
+    try {
+      const sp = await socket.config().getSystemPrompt();
+      setSystemPrompt(typeof sp === "string" ? sp : JSON.stringify(sp, null, 2));
+    } catch (err) {
+      console.error("Failed to load system prompt:", err);
+    }
+  }, [socket]);
+
+  const getPrompt = useCallback(async (id: string) => {
+    return socket.config().getPrompt(id);
+  }, [socket]);
+
+  // Auto-load when connected
+  useEffect(() => {
+    const connected =
+      connectionState.status === "connected" ||
+      connectionState.status === "authenticated" ||
+      connectionState.status === "unauthenticated";
+    if (connected) {
+      loadPrompts();
+      loadSystemPrompt();
+    }
+  }, [connectionState.status, loadPrompts, loadSystemPrompt]);
+
+  return { prompts, systemPrompt, loading, loadPrompts, loadSystemPrompt, getPrompt };
+}