fix: Preserve form content when adding/removing conclusions and actions

Sync DOM values to currentMeeting object before re-rendering when user
clicks Add or Remove buttons. Previously, typed content was lost because
render functions read from the data model which wasn't updated.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

client/src/pages/meeting-detail.html

@@ -534,23 +534,64 @@
       `).join('');
     }
 
+    // Save current form values to currentMeeting before re-rendering
+    function syncConclusionsFromDOM() {
+      document.querySelectorAll('.conclusion-content').forEach(textarea => {
+        const index = parseInt(textarea.dataset.index);
+        if (currentMeeting.conclusions && currentMeeting.conclusions[index]) {
+          currentMeeting.conclusions[index].content = textarea.value;
+        }
+      });
+    }
+
+    function syncActionsFromDOM() {
+      document.querySelectorAll('.action-content').forEach(textarea => {
+        const index = parseInt(textarea.dataset.index);
+        if (currentMeeting.actions && currentMeeting.actions[index]) {
+          currentMeeting.actions[index].content = textarea.value;
+        }
+      });
+      document.querySelectorAll('.action-owner').forEach(input => {
+        const index = parseInt(input.dataset.index);
+        if (currentMeeting.actions && currentMeeting.actions[index]) {
+          currentMeeting.actions[index].owner = input.value;
+        }
+      });
+      document.querySelectorAll('.action-due').forEach(input => {
+        const index = parseInt(input.dataset.index);
+        if (currentMeeting.actions && currentMeeting.actions[index]) {
+          currentMeeting.actions[index].due_date = input.value || null;
+        }
+      });
+      document.querySelectorAll('.action-status').forEach(select => {
+        const index = parseInt(select.dataset.index);
+        if (currentMeeting.actions && currentMeeting.actions[index]) {
+          currentMeeting.actions[index].status = select.value;
+        }
+      });
+    }
+
     window.removeConclusion = function(index) {
+      syncConclusionsFromDOM();
       currentMeeting.conclusions.splice(index, 1);
       renderConclusions();
     };
 
     window.removeAction = function(index) {
+      syncActionsFromDOM();
       currentMeeting.actions.splice(index, 1);
       renderActions();
     };
 
     addConclusionBtn.addEventListener('click', () => {
+      syncConclusionsFromDOM();
       if (!currentMeeting.conclusions) currentMeeting.conclusions = [];
       currentMeeting.conclusions.push({ content: '' });
       renderConclusions();
     });
 
     addActionBtn.addEventListener('click', () => {
+      syncActionsFromDOM();
       if (!currentMeeting.actions) currentMeeting.actions = [];
       currentMeeting.actions.push({ content: '', owner: '', due_date: null, status: 'Open' });
       renderActions();