fix: !neighbors shows infra links without requiring SNR, edge SNR enrichment from traceroutes

- Removed SNR-required filter from !neighbors command
- Show all infra neighbors, add signal quality when available
- Enrich edges with SNR from traceroute snrTowards/snrBack data
- Fallback: use node-level SNR for edges without traceroute data
- Sort by SNR when available, alphabetically otherwise

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

meshai/commands/health.py

@@ -1,58 +1,170 @@
-"""Health and region commands for mesh status."""
-
-from .base import CommandContext, CommandHandler
-
-
-class HealthCommand(CommandHandler):
-    """Quick mesh health summary."""
-
-    name = "health"
-    description = "Show mesh health summary"
-    usage = "!health"
-    aliases = ["mesh", "status"]
-
-    def __init__(self, mesh_reporter=None):
-        """Initialize with optional mesh reporter.
-
-        Args:
-            mesh_reporter: MeshReporter instance for health data
-        """
-        self._mesh_reporter = mesh_reporter
-
-    async def execute(self, args: str, context: CommandContext) -> str:
-        """Return compact mesh health summary."""
-        if not self._mesh_reporter:
-            return "Mesh health not available."
-
-        return self._mesh_reporter.build_lora_compact("mesh")
-
-
-class RegionCommand(CommandHandler):
-    """Region health information."""
-
-    name = "region"
-    description = "Show region health info"
-    usage = "!region [name]"
-    aliases = ["reg"]
-
-    def __init__(self, mesh_reporter=None):
-        """Initialize with optional mesh reporter.
-
-        Args:
-            mesh_reporter: MeshReporter instance for health data
-        """
-        self._mesh_reporter = mesh_reporter
-
-    async def execute(self, args: str, context: CommandContext) -> str:
-        """Return region health info."""
-        if not self._mesh_reporter:
-            return "Mesh health not available."
-
-        args = args.strip()
-
-        if not args:
-            # List all regions
-            return self._mesh_reporter.list_regions_compact()
-
-        # Get specific region detail (compact for LoRa)
-        return self._mesh_reporter.build_lora_compact("region", args)
+"""Health and region commands for mesh status."""
+
+from typing import TYPE_CHECKING
+
+from .base import CommandContext, CommandHandler
+
+if TYPE_CHECKING:
+    from ..mesh_data_store import MeshDataStore
+    from ..mesh_health import MeshHealthEngine
+
+
+# Infrastructure roles
+INFRA_ROLES = {"ROUTER", "ROUTER_LATE", "ROUTER_CLIENT", "REPEATER"}
+
+
+class HealthCommand(CommandHandler):
+    """Quick mesh health summary."""
+
+    name = "health"
+    description = "Show mesh health summary"
+    usage = "!health"
+    aliases = ["mesh", "status"]
+
+    def __init__(self, mesh_reporter=None):
+        """Initialize with optional mesh reporter.
+
+        Args:
+            mesh_reporter: MeshReporter instance for health data
+        """
+        self._mesh_reporter = mesh_reporter
+
+    async def execute(self, args: str, context: CommandContext) -> str:
+        """Return compact mesh health summary."""
+        if not self._mesh_reporter:
+            return "Mesh health not available."
+
+        return self._mesh_reporter.build_lora_compact("mesh")
+
+
+class RegionCommand(CommandHandler):
+    """Region health information."""
+
+    name = "region"
+    description = "Show region health info"
+    usage = "!region [name]"
+    aliases = ["reg"]
+
+    def __init__(self, mesh_reporter=None):
+        """Initialize with optional mesh reporter.
+
+        Args:
+            mesh_reporter: MeshReporter instance for health data
+        """
+        self._mesh_reporter = mesh_reporter
+
+    async def execute(self, args: str, context: CommandContext) -> str:
+        """Return region health info."""
+        if not self._mesh_reporter:
+            return "Mesh health not available."
+
+        args = args.strip()
+
+        if not args:
+            # List all regions
+            return self._mesh_reporter.list_regions_compact()
+
+        # Get specific region detail (compact for LoRa)
+        return self._mesh_reporter.build_lora_compact("region", args)
+
+
+class NeighborCommand(CommandHandler):
+    """Show infrastructure neighbors for a node."""
+
+    name = "neighbors"
+    description = "Show top infrastructure neighbors"
+    usage = "!neighbors [node]"
+    aliases = ["nbr", "nb"]
+
+    def __init__(
+        self,
+        mesh_reporter=None,
+        data_store: "MeshDataStore" = None,
+        health_engine: "MeshHealthEngine" = None,
+    ):
+        """Initialize with mesh components.
+
+        Args:
+            mesh_reporter: MeshReporter instance
+            data_store: MeshDataStore with edge/neighbor data
+            health_engine: MeshHealthEngine for infrastructure detection
+        """
+        self._mesh_reporter = mesh_reporter
+        self._data_store = data_store
+        self._health_engine = health_engine
+
+    async def execute(self, args: str, context: CommandContext) -> str:
+        """Return top 5 infrastructure neighbors for a node."""
+        if not self._data_store:
+            return "Neighbor data not available."
+
+        # Parse node argument
+        node_name = args.strip() if args else None
+        
+        if not node_name:
+            return "Usage: !neighbors <node>\nExample: !neighbors MHR"
+
+        # Find the target node
+        target = self._data_store.get_node(node_name)
+        if not target:
+            return f"Node '{node_name}' not found."
+
+        # Get infrastructure neighbors from the node's neighbor list
+        infra_neighbors = []
+        for nb_num in target.neighbors:
+            nb = self._data_store.get_node(str(nb_num))
+            if nb and nb.role in INFRA_ROLES:
+                # Try to find signal quality from multiple sources
+                snr = None
+                rssi = None
+                
+                # Source 1: Edge data
+                for edge in self._data_store.edges:
+                    if (edge.from_node == target.node_num and edge.to_node == nb_num) or \
+                       (edge.to_node == target.node_num and edge.from_node == nb_num):
+                        if edge.snr is not None:
+                            snr = edge.snr
+                        if edge.rssi is not None:
+                            rssi = edge.rssi
+                        break
+                
+                # Source 2: Neighbor node's own SNR field (fallback)
+                if snr is None and nb.snr is not None:
+                    snr = nb.snr
+                if rssi is None and nb.rssi is not None:
+                    rssi = nb.rssi
+
+                infra_neighbors.append({
+                    "long_name": nb.long_name or nb.short_name,
+                    "short_name": nb.short_name,
+                    "role": nb.role,
+                    "snr": snr,
+                    "rssi": rssi,
+                })
+
+        if not infra_neighbors:
+            return f"{target.short_name} has no infrastructure neighbors."
+
+        # Sort: by SNR descending if available, then alphabetically
+        def sort_key(n):
+            if n["snr"] is not None:
+                return (0, -n["snr"])  # Has SNR, sort by SNR descending
+            return (1, n["short_name"].lower())  # No SNR, sort alphabetically
+        
+        infra_neighbors.sort(key=sort_key)
+        
+        # Format output - top 5
+        total = len(infra_neighbors)
+        top5 = infra_neighbors[:5]
+        
+        lines = [f"{target.short_name} infra neighbors ({total}):"]
+        for n in top5:
+            line = f"{n['long_name']} ({n['short_name']})"
+            if n["snr"] is not None:
+                line += f" [SNR {n['snr']:.1f}]"
+            lines.append(line)
+        
+        if total > 5:
+            lines.append(f"...and {total - 5} more")
+
+        return "\n".join(lines)