Add Batch Install Plugins installation instructions to various plugins and filters

- Updated README files for the following plugins to include installation instructions using Batch Install Plugins:
  - deep-dive
  - export_to_docx
  - export_to_excel
  - flash-card
  - infographic
  - smart-mind-map
  - async-context-compression
  - chat-session-mapping-filter
  - folder-memory
  - github_copilot_sdk_files_filter
  - markdown_normalizer
  - github-copilot-sdk
  - iflow-sdk-pipe
  - openwebui-skills-manager
  - smart-mind-map-tool

- Added important notes regarding the removal of the official OpenWebUI Community version before installation.

.agent/rules/plugin_standards.md

@@ -18,16 +18,18 @@ All plugins MUST follow the standard README template.
 
 ### Metadata Requirements
 
-The metadata line must follow this format:
-`**Author:** [Name](Link) | **Version:** [X.Y.Z] | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions) | **License:** MIT`
+Follow the header table used in the template:
+`| By [Fu-Jie](https://github.com/Fu-Jie) · vX.Y.Z | [⭐ Star this repo](https://github.com/Fu-Jie/openwebui-extensions) |`
 
 ### Structure Checklist
 
 1. **Title & Description**
-2. **Metadata Line** (Author, Version, Project, License)
-3. **Preview** (Screenshots/GIFs)
-4. **What's New** (Keep last 3 versions)
-5. **Key Features**
-6. **How to Use**
-7. **Configuration (Valves)**
-8. **Troubleshooting** (Must include link to GitHub Issues)
+2. **Header Metadata Table** (Author, version, repo star link)
+3. **Preview** (Screenshot, GIF, or a short note if preview is not ready)
+4. **Install with Batch Install Plugins** (Include the fixed prompt block)
+   Use the generic prompt `Install plugin from Fu-Jie/openwebui-extensions` instead of hard-coding the plugin name.
+5. **What's New** (Keep last 1-3 versions)
+6. **Key Features**
+7. **How to Use**
+8. **Configuration (Valves)**
+9. **Troubleshooting** (Must include link to GitHub Issues and mention official-version conflict if relevant)