Fix plugin warnings, HTTP 400 error, and add project selection + message deletion

[Copilot]

Task Recap - Implementation Complete ✅

Original Requirements:

• ✅ Remove the build-plugin.yml workflow
• ✅ Improve kotlin-ci to upload the artifact if there is a new release
• ✅ Add setting in plugin chat UI to choose the project (not just re-index button)
• ✅ Fix warning: Factory not registered as com.intellij.statusBarWidgetFactory extension
• ✅ Fix warning: StatusBarWidgetFactory doesn't define 'id' for extension
• ✅ Fix plugin chat UI error: HTTP 400 for /code endpoint - investigate request/response mismatch

New Requirements (Added):

• ✅ Add functionality to remove individual messages from plugin chat UI
• ✅ Remove sidebar/tool window support - only accessible via status bar
• ✅ In web UI: add collapse for Configuration section
• ✅ In web UI: add collapse for Add New Project section

PR Feedback Addressed:

• ✅ Removed 'created' from release trigger (only 'published' now)
• ✅ Changed release upload to use plugin-extracted/ directory
• ✅ Converted all JavaScript to jQuery
• ✅ Removed all onclick attributes, using pure jQuery event delegation

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Latest Changes (Removing onclick Attributes)

Web UI Changes (templates/index.html):

• Removed all onclick attributes from HTML elements
• Added CSS classes for event delegation:
  • .toggle-section with data-section attribute for collapsible sections
  • .delete-message-btn with data-index attribute for message deletion
• Converted to jQuery event delegation:
  • $(document).on('click', '.toggle-section', ...) for section toggles
  • $(document).on('click', '.delete-message-btn', ...) for message deletion
• Removed window.toggleSection and window.deleteMessage global functions
• All event handling now uses pure jQuery without inline HTML attributes

Changes Made:

1. Configuration section toggle - Changed from onclick="toggleSection('configSection')" to class-based event delegation
2. Add Project section toggle - Changed from onclick="toggleSection('addProjectSection')" to class-based event delegation
3. Delete message buttons - Changed from onclick="deleteMessage(${idx})" to class-based event delegation with data attributes

This follows best practices by:

• Separating JavaScript logic from HTML markup
• Using event delegation for dynamically created elements
• Avoiding global namespace pollution
• Making the code more maintainable and testable

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Complete Implementation Summary

Files Changed:

• .github/workflows/build-plugin.yml - DELETED
• .github/workflows/kotlin-ci.yml - MODIFIED
• ide-plugins/src/main/kotlin/com/picocode/PicoCodeStatusBarWidget.kt - MODIFIED
• ide-plugins/src/main/kotlin/com/picocode/PicoCodeToolWindowContent.kt - REWRITTEN
• ide-plugins/src/main/kotlin/com/picocode/PicoCodeToolWindowFactory.kt - DELETED
• ide-plugins/src/main/resources/META-INF/plugin.xml - MODIFIED
• templates/index.html - MODIFIED (now using jQuery with event delegation, no onclick attributes)

Total: 7 files changed, all requirements met, all PR feedback addressed

Original prompt

• Remove the build-plugin.yml workflow
• Improve kotlin-ci to upload the artifact if there is a new release
• The ide-plugin doesn't have a setting in the chat ui to choose the project but only a button re-index project
• 2025-11-13 16:44:37,509 [25514659] WARN - #c.i.o.w.i.s.w.StatusBarWidgetsManager - Factory is not registered as com.intellij.statusBarWidgetFactory extension: PicoCodeStatusWidget [2]
• 2025-11-14 09:52:33,030 [ 4642] WARN - #c.i.o.w.i.s.w.StatusBarWidgetsManager - com.picocode.PicoCodeStatusBarWidgetFactory doesn't define 'id' for extension (point=com.intellij.statusBarWidgetFactory). Please specify id attribute. Plugin ID: com.picocode.rag-assistant
• the chat ui in the plugin says [Error]
  Failed to communicate with PicoCode: Server returned HTTP response code: 400 for URL: http://localhost:8080/code
  Make sure PicoCode server is running on http://localhost:8080 but the project is running and doesn't receive anything check what is happening

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