feat: Named single-gw nodes, infra-only monitoring, commands overhaul

Coverage:
- Single-gateway infra nodes named as critical risks per region
- Client single-gw nodes counted but not individually named
- Mesh-wide single-gw infra summary

Monitoring rules by node type:
- Infrastructure: full detail - battery, offline, coverage, neighbors, hardware
- Clients causing problems: named - high util, top senders
- Clients otherwise: counted per region, not individually tracked
- POWER breakdown now infra-only

Commands:
- Removed hardcoded command list from config.py system_prompt
- Dynamic command list in router.py from dispatcher (only enabled commands)
- MeshMonitor commands no longer listed as MeshAI commands
- !help overhaul: grouped by category, per-command detailed help
- LLM explicitly told to only mention listed commands

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

meshai/commands/help.py

@@ -8,18 +8,132 @@ class HelpCommand(CommandHandler):
 
     name = "help"
     description = "Show available commands"
-    usage = "!help"
+    usage = "!help [command]"
 
     def __init__(self, dispatcher):
         self._dispatcher = dispatcher
 
     async def execute(self, args: str, context: CommandContext) -> str:
-        """List all available commands."""
+        if args and args.strip():
+            return self._command_help(args.strip().lower())
+        return self._list_all()
+
+    def _list_all(self) -> str:
+        """List all commands grouped by category."""
         commands = self._dispatcher.get_commands()
 
-        # Build compact help text
-        lines = ["Commands:"]
-        for cmd in sorted(commands, key=lambda c: c.name):
-            lines.append(f"!{cmd.name} - {cmd.description}")
+        # Deduplicate aliases
+        seen = set()
+        unique = []
+        for cmd in commands:
+            if cmd.name.lower() not in seen:
+                seen.add(cmd.name.lower())
+                unique.append(cmd)
 
-        return " | ".join(lines)
+        # Group by category
+        health_names = {"health", "region", "neighbors"}
+        sub_names = {"sub", "unsub", "mysubs"}
+
+        health_cmds = [c for c in unique if c.name.lower() in health_names]
+        sub_cmds = [c for c in unique if c.name.lower() in sub_names]
+        other_cmds = [c for c in unique if c.name.lower() not in health_names and c.name.lower() not in sub_names and c.name.lower() != "help"]
+
+        lines = ["Commands:"]
+
+        if health_cmds:
+            lines.append("")
+            lines.append("Mesh Health:")
+            for c in sorted(health_cmds, key=lambda x: x.name):
+                lines.append(f"  !{c.name} - {c.description}")
+
+        if sub_cmds:
+            lines.append("")
+            lines.append("Subscriptions:")
+            for c in sorted(sub_cmds, key=lambda x: x.name):
+                lines.append(f"  !{c.name} - {c.description}")
+
+        if other_cmds:
+            lines.append("")
+            lines.append("Other:")
+            for c in sorted(other_cmds, key=lambda x: x.name):
+                lines.append(f"  !{c.name} - {c.description}")
+
+        lines.append("")
+        lines.append("!help [cmd] for details")
+        lines.append("Or just ask me naturally!")
+
+        return "\n".join(lines)
+
+    def _command_help(self, cmd_name: str) -> str:
+        """Detailed help for a specific command."""
+        aliases = {
+            "sub": "sub", "subscribe": "sub", "subscription": "sub", "subscriptions": "sub",
+            "unsub": "unsub", "unsubscribe": "unsub",
+            "mysubs": "mysubs", "subs": "mysubs",
+            "health": "health", "mesh": "health",
+            "region": "region", "reg": "region",
+            "neighbors": "neighbors", "nbr": "neighbors", "nb": "neighbors",
+            "clear": "clear", "reset": "clear",
+        }
+        resolved = aliases.get(cmd_name, cmd_name)
+
+        # Check if this command is actually registered
+        registered = {c.name.lower() for c in self._dispatcher.get_commands()}
+
+        texts = {
+            "sub": (
+                "Subscribe to Reports & Alerts\n\n"
+                "Daily report:\n"
+                "  !sub daily 6pm\n"
+                "  !sub daily 7:30am region SCID\n"
+                "  !sub daily 6pm node MHR\n\n"
+                "Weekly digest:\n"
+                "  !sub weekly 8am sun\n\n"
+                "Alerts (instant DM on issues):\n"
+                "  !sub alerts\n"
+                "  !sub alerts region Wood River\n\n"
+                "Time: 6pm, 6:30pm, 1830, 18:30\n"
+                "Regions: SCID, SWID, Magic Valley, Twin Falls\n\n"
+                "Manage:\n"
+                "  !mysubs - list yours\n"
+                "  !unsub daily - remove daily\n"
+                "  !unsub all - remove everything"
+            ),
+            "unsub": (
+                "Unsubscribe\n\n"
+                "  !unsub daily  - remove daily report\n"
+                "  !unsub weekly - remove weekly digest\n"
+                "  !unsub alerts - remove alerts\n"
+                "  !unsub all    - remove everything"
+            ),
+            "mysubs": "!mysubs - list your active subscriptions",
+            "health": (
+                "Mesh Health\n\n"
+                "  !health     - 5-pillar health summary\n"
+                "  !health now - force fresh data\n\n"
+                "Or ask: 'how's the mesh?'"
+            ),
+            "region": (
+                "Region Info\n\n"
+                "  !region       - list all regions\n"
+                "  !region SCID  - South Central ID\n"
+                "  !region boise - South Western ID"
+            ),
+            "neighbors": (
+                "Neighbors\n\n"
+                "  !neighbors MHR - infra neighbors + signal\n"
+                "  !nb T2T        - alias"
+            ),
+            "clear": "!clear or !reset - clears conversation history",
+            "ping": "!ping - connectivity test, responds with pong",
+            "status": "!status - shows version, uptime, message count",
+            "weather": "!weather [location] - weather lookup",
+        }
+
+        help_text = texts.get(resolved)
+        if help_text and resolved in registered:
+            return help_text
+        elif help_text and resolved not in registered:
+            return f"The !{resolved} command is not currently enabled."
+        else:
+            return f"No help available for '{cmd_name}'. Try !help"