Chore: silence debug logging across all pages (log_lvl → 0)

Set log_lvl to 0 in all pages and layouts that had it left at 1 or 2
from development. Also remove two hardcoded `log_lvl = 2` overrides
inside function bodies in reports_files.svelte and
reports_presenters.svelte that were forcing verbose output regardless
of the module-level setting.

Affected: launcher location page, leads pages (2), pres_mgmt reports (2),
presenter +page.ts, IDAA layouts (2), IDAA archives, IDAA recovery
meetings page, journals pages (2).

src/routes/journals/[journal_id]/+page.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
     /** @type {import('./$types').PageData} */
-    let log_lvl: number = $state(1);
+    let log_lvl: number = $state(0);
 
     interface Props {
         data: any;

src/routes/journals/[journal_id]/entry/[journal_entry_id]/+page.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
     /** @type {import('./$types').PageData} */
-    let log_lvl: number = $state(1);
+    let log_lvl: number = $state(0);
 
     // *** Import Svelte specific
     import { untrack } from 'svelte';