refactor: Update issue queue structure and commands

- Changed queue structure from 'queue' to 'tasks' in various files for clarity.
- Updated CLI commands to reflect new task ID usage instead of queue ID.
- Enhanced queue management with new delete functionality for historical queues.
- Improved metadata handling and task execution tracking.
- Updated dashboard and issue manager views to accommodate new task structure.
- Bumped version to 6.3.8 in package.json and package-lock.json.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "claude-code-workflow",
-  "version": "6.2.9",
+  "version": "6.3.8",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "claude-code-workflow",
-      "version": "6.2.9",
+      "version": "6.3.8",
       "license": "MIT",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.0.4",