Initial commit: bots, AI-parameterised support bot, web frontend

- simplex-deadmans-bot: Dead Man's Switch Haskell bot
- simplexxx-directory: private SimpleXXX directory bot (fork of simplex-directory-service)
- simplex-support-bot: support triage bot with configurable AI backend
  - --ai-url and --ai-model flags for any OpenAI-compatible provider
  - works with Grok, Ollama, OpenAI, LM Studio, etc.
  - AI_API_KEY env var (GROK_API_KEY still accepted as alias)
- web: SimpleXXX directory frontend (Groups/Channels tabs, matches simplex.chat/directory style)
- manager/: placeholder for Python profile manager (coming soon)

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

bots/haskell/simplex-deadmans-bot/mock_server.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+from http.server import BaseHTTPRequestHandler, HTTPServer
+from datetime import datetime
+
+PORT = 8080
+
+class Handler(BaseHTTPRequestHandler):
+    def do_POST(self):
+        if self.path == "/deadmanswitch":
+            length = int(self.headers.get("Content-Length", 0))
+            body = self.rfile.read(length) if length else b""
+            print(f"[{datetime.now()}] TRIGGERED — body: {body!r}")
+            self.send_response(200)
+            self.end_headers()
+            self.wfile.write(b"OK")
+        else:
+            self.send_response(404)
+            self.end_headers()
+
+    def log_message(self, fmt, *args):
+        pass  # silence default access log; we print our own above
+
+if __name__ == "__main__":
+    server = HTTPServer(("", PORT), Handler)
+    print(f"Mock dead man's switch listening on http://localhost:{PORT}/deadmanswitch")
+    try:
+        server.serve_forever()
+    except KeyboardInterrupt:
+        print("\nStopped.")