feat: add a submarine cable tool

Add find_submarine_cables over the bundled TeleGeography data: cables
passing through or landing in an area, or matching a name, with landing
points and the dataset's attribution. The local MCP server's fetch reads
the bundled data files a browser would load by URL, and nothing outside
that directory.

scripts/package-boundaries.json

@@ -3111,7 +3111,8 @@
       "src/layers/wind/inspection.js",
       "src/layers/wind/model.js",
       "src/layers/wind/fields.js",
-      "src/tools/queries/imagery.js"
+      "src/tools/queries/imagery.js",
+      "src/tools/queries/cables.js"
     ],
     "external": ["satellite.js"]
   },
@@ -3181,7 +3182,8 @@
       "src/layers/wind/source.js",
       "src/sources/windBody.js",
       "src/layers/recentImagery/catalog.js",
-      "src/layers/recentImagery/model.js"
+      "src/layers/recentImagery/model.js",
+      "src/layers/submarineCables/bundledSource.js"
     ],
     "external": ["@mapbox/vector-tile", "pbf"]
   }