fix(catalog): add optional BDD framework tools to bdd extension entry

Add the six optional tool dependencies submitted with the bdd extension
to the requires.tools field so they appear in CLI extension details:
pytest-bdd, behave, @cucumber/cucumber, cucumber, io.cucumber, SpecFlow

Assisted-by: GitHub Copilot (model: claude-sonnet-4.5, autonomous)

Author: Copilot

extensions/catalog.community.json

@@ -410,7 +410,33 @@
       "category": "process",
       "effect": "read-write",
       "requires": {
-        "speckit_version": ">=0.2.0"
+        "speckit_version": ">=0.2.0",
+        "tools": [
+          {
+            "name": "pytest-bdd",
+            "required": false
+          },
+          {
+            "name": "behave",
+            "required": false
+          },
+          {
+            "name": "@cucumber/cucumber",
+            "required": false
+          },
+          {
+            "name": "cucumber",
+            "required": false
+          },
+          {
+            "name": "io.cucumber",
+            "required": false
+          },
+          {
+            "name": "SpecFlow",
+            "required": false
+          }
+        ]
       },
       "provides": {
         "commands": 3,