feat: Add accept-with-feedback plugin

Add a new plugin that allows users to approve permission requests while
providing guidance to Claude. This addresses the request for an "accept
with feedback" option (similar to the existing "reject with feedback"
for plans).

The plugin includes:
- PermissionRequest hook to intercept permission prompts
- /accept-feedback command for one-time feedback
- /configure-feedback command for persistent rules
- Configuration file support for automated feedback rules

Users can now provide context like "make sure to add error handling"
when approving operations, and Claude receives this as guidance.

plugins/accept-with-feedback/.claude-plugin/plugin.json

@@ -0,0 +1,9 @@
+{
+  "name": "accept-with-feedback",
+  "version": "1.0.0",
+  "description": "Accept permission requests with feedback - provide guidance to Claude when approving operations",
+  "author": {
+    "name": "Anthropic",
+    "email": "support@anthropic.com"
+  }
+}