chore(workflow): add AI-assisted workflow commands and configurations

Add comprehensive workflow commands for AI-assisted development:
- Claude commands: analyze, clarify, plan
- Kilocode workflows: full feature development lifecycle
- Opencode commands: specification and implementation workflows
- Roo MCP configuration for tool integration

Update .gitignore to exclude .astro build cache directories.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.specify/scripts/bash/check-prerequisites.sh

@@ -82,14 +82,20 @@ source "$SCRIPT_DIR/common.sh"
 eval $(get_feature_paths)
 check_feature_branch "$CURRENT_BRANCH" "$HAS_GIT" || exit 1
 
-# If paths-only mode, output paths and exit
+# If paths-only mode, output paths and exit (support JSON + paths-only combined)
 if $PATHS_ONLY; then
-    echo "REPO_ROOT: $REPO_ROOT"
-    echo "BRANCH: $CURRENT_BRANCH"
-    echo "FEATURE_DIR: $FEATURE_DIR"
-    echo "FEATURE_SPEC: $FEATURE_SPEC"
-    echo "IMPL_PLAN: $IMPL_PLAN"
-    echo "TASKS: $TASKS"
+    if $JSON_MODE; then
+        # Minimal JSON paths payload (no validation performed)
+        printf '{"REPO_ROOT":"%s","BRANCH":"%s","FEATURE_DIR":"%s","FEATURE_SPEC":"%s","IMPL_PLAN":"%s","TASKS":"%s"}\n' \
+            "$REPO_ROOT" "$CURRENT_BRANCH" "$FEATURE_DIR" "$FEATURE_SPEC" "$IMPL_PLAN" "$TASKS"
+    else
+        echo "REPO_ROOT: $REPO_ROOT"
+        echo "BRANCH: $CURRENT_BRANCH"
+        echo "FEATURE_DIR: $FEATURE_DIR"
+        echo "FEATURE_SPEC: $FEATURE_SPEC"
+        echo "IMPL_PLAN: $IMPL_PLAN"
+        echo "TASKS: $TASKS"
+    fi
     exit 0
 fi