DOCS: Update GEMINI.md with Tiptap to CodeMirror migration details

GEMINI.md

@@ -61,3 +61,15 @@ The refactoring strategy involved creating a local, non-exported `_process_gener
   - The `process_ae_obj__props` function in this file was deprecated.
   - All calls to `process_ae_obj__props` and `db_save_ae_obj_li__ae_obj` were removed from the generic CRUD functions (`load_ae_obj_id`, `load_ae_obj_li`, etc.).
   - These functions are now responsible only for API interaction, delegating all data processing and caching to the module-specific functions that call them. This enforces a cleaner separation of concerns.
+
+### Tiptap to CodeMirror Migration (2025-11-17)
+
+The rich text editor component, previously based on Tiptap (`shad-editor`), has been replaced with a CodeMirror-based solution. This change was driven by the complexity of Tiptap and its compatibility issues with Tailwind CSS, aiming for a simpler, markdown-focused editing experience.
+
+**Key aspects of the migration:**
+
+- **Removal of Tiptap:** All `@tiptap/*` and `svelte-tiptap` dependencies were removed from `package.json`, and the `src/lib/components/shad-editor/` directory was deleted.
+- **CodeMirror Integration:** A new CodeMirror component (`src/lib/elements/element_codemirror_editor.svelte`) was created, providing basic markdown formatting capabilities.
+- **Wrapper Component Update:** The existing editor wrapper (`src/lib/elements/element_tiptap_editor.svelte`) was renamed to `src/lib/elements/element_codemirror_wrapper.svelte` and refactored to utilize the new CodeMirror component. Tiptap-specific logic and props were removed.
+- **Component Usage Updates:** All Svelte components that previously imported and used the Tiptap wrapper were updated to import `element_codemirror_wrapper.svelte`. Unsupported props such as `default_minimal`, `show_button_kv`, `bind:new_html`, and `bind:changed` were removed from their usage.
+- **Dependency Cleanup:** `npm install` was run to remove unneeded packages, and `npm run format` was executed to ensure consistent code style.

package-lock.json

@@ -3970,7 +3970,6 @@
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 			"license": "MIT",
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 			"dependencies": {
 				"@codemirror/autocomplete": "^6.0.0",
 				"@codemirror/commands": "^6.0.0",
@@ -5089,7 +5088,6 @@
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 			"dev": true,
 			"license": "BSD-3-Clause",
-			"peer": true,
 			"engines": {
 				"node": ">=12.0.0"
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@@ -5608,7 +5606,6 @@
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 			"dev": true,
 			"license": "MIT",
-			"peer": true,
 			"dependencies": {
 				"@types/hast": "^3.0.0",
 				"devlop": "^1.0.0",