improvement: inheriting tags from project and parent tasks

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/task/Add.svelte

@@ -8,6 +8,7 @@
 
     import MarkdownEditor from '../../Components/MarkdownEditor.svelte';
     import MemberEditor from '../../Components/MemberEditor.svelte';
+    import Tags from '../tags/TagList.svelte';
 
     let { project_id = null, parent_task_id } = $props();
     let error = $state(null);
@@ -17,12 +18,13 @@
     let task = $state({
         name : '',
         description : { source : '', rendered : '' },
-        members : {},
-        estimated_time: null,
-        start_date: null,
         due_date: null,
+        estimated_time: null,
+        no_index: false,
+        members : {},
         show_closed: false,
-        no_index: false
+        start_date: null,
+        tags: []
     });
     let router = useTinyRouter();
 
@@ -38,6 +40,7 @@
     async function load(){
         if (parent_task_id) await loadParent();
         if (project_id) loadProject();
+        loadTags();
     }
 
     async function loadParent(){
@@ -68,6 +71,16 @@
         }
     }
 
+    async function loadTags(){
+        let url = null;
+        if (project_id) url = api(`tags/project/${project_id}`);
+        if (parent_task_id) url = api(`tags/task/${parent_task_id}`);
+        if (url) {
+            const resp = await fetch(url,{credentials:'include'});
+            if (resp.ok) task.tags = await resp.json();
+        }
+    }
+
     async function getCandidates(text){
         const origin = parent_task ? parent_task.members : project.members;
         const candidates = Object.values(origin)
@@ -154,6 +167,14 @@
                     <MarkdownEditor bind:value={task.description} simple={true} />
                 </td>
             </tr>
+            <tr>
+                <th>
+                    {t('tags')}
+                </th>
+                <td>
+                    <Tags module="task" bind:tags={task.tags} />
+                </td>
+            </tr>
             {#if extendedSettings}
             <tr>
                 <th>