fix: reduce svelte-check warnings from 175 to 95 (80 eliminated)

Svelte 5 reactivity pattern fixes:
- Convert prop/data captures to $derived where used in reactive contexts
- Wrap store assignments in $effect + untrack for ae_acct pattern
- Move sign_in_out URL param processing to onMount (from top-level if(browser))
- Wrap debug console.log blocks in $effect instead of top-level if(log_lvl)
- Fix $state initializers reading props directly ($state(link_to_id) → $state(''))
- Fix box = $state(null) in journals layout

CSS fixes:
- TipTap scss: change :global(.tiptap){nested} to :global{.tiptap{nested}} so
  Svelte does not scope-hash dynamic content selectors (latent CSS bug fixed)
- element_manage_hosted/event: dq__where vars → $derived for reactive liveQuery

Config:
- svelte.config.js: add onwarn (suppresses a11y/CSS in Vite pipeline; note:
  svelte-check 4.x does not read onwarn so CLI count unchanged)

Remaining 95 warnings (acceptable baseline):
- 70x a11y_label: form labels need for/id attributes (proper a11y fix deferred)
- 12x lu_* false positives in IDAA async callbacks (correct code)
- 8x CSS dynamic selectors Svelte cannot detect at compile time
- 5x other intentional patterns (autofocus, form state, log_lvl callbacks)

src/lib/ae_core/ae_comp__hosted_files_upload.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    import { untrack } from 'svelte';
+    // untrack import removed — task_id sync now uses direct $effect (no untrack needed)
     // Imports
     // Import components and elements
     import * as Lucide from 'lucide-svelte';
@@ -63,7 +63,7 @@
     }: Props = $props();
 
     // Local Variables
-    let task_id = $state(link_to_id);
+    let task_id: string = $state('');
     let input_file_list: any = $state(null);
     let ae_promises: key_val = $state({}); // Promise<any>;
     let ae_triggers: key_val = {};
@@ -78,11 +78,8 @@
     });
 
     $effect(() => {
-        // NOTE: Standard Svelte 5 pattern to keep local state in sync with changing props.
-        // This prevents 'Captured initial value' issues when navigating between objects.
-        untrack(() => {
-            task_id = link_to_id;
-        });
+        // Sync task_id with link_to_id prop so it resets when navigating to a different object.
+        task_id = link_to_id;
     });
 
     // *** Functions and Logic