feat(ui): context panel enhancements — resizable panels, drag-and-drop todo ordering, and persistent sizes (#1269)

* fix: remove max-h-80 cap on quick notes textarea so resized height is respected

* feat: add drag & drop reordering to project todo items

* feat: make todo panel resizable with density-aware sizing

* feat: open plan import file picker at project root

* feat: persist quick notes and todo panel sizes across sessions

* refactor(ui): scale content height with padding in projectnotestodopanel

* Update packages/ui/src/components/session/ProjectNotesTodoPanel.tsx

Signed-off-by: Erman HAVUÇ <ermanhavuc@gmail.com>

* fix(ui): harden context panel resizing and import

---------

Signed-off-by: Erman HAVUÇ <ermanhavuc@gmail.com>
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/desktop.ts

@@ -369,7 +369,7 @@ export const requestDirectoryAccess = async (
 };
 
 export const requestFileAccess = async (
-  options?: { filters?: Array<{ name: string; extensions: string[] }> }
+  options?: { filters?: Array<{ name: string; extensions: string[] }>; defaultPath?: string }
 ): Promise<{ success: boolean; path?: string; error?: string }> => {
   if (isTauriShell() && isDesktopLocalOriginActive()) {
     try {
@@ -379,6 +379,7 @@ export const requestFileAccess = async (
         multiple: false,
         title: 'Select File',
         ...(options?.filters ? { filters: options.filters } : {}),
+        ...(options?.defaultPath ? { defaultPath: options.defaultPath } : {}),
       });
       if (!selected || typeof selected !== 'string') {
         return { success: false, error: 'File selection cancelled' };