fix: harden upload cancellation and audit logging

Preserve pre-start and batch cancellation requests, reject late upload success after cancellation, and wait for cancellation acknowledgements before removing queue entries.

Separate formatted link logs from privacy-safe source cleanup and upload plan audits, persist audit fallback paths, redact support bundles, and expose audit diagnostics safely.

Improve queue selection and destructive-action clarity, show the Settings save action only while changes are pending, and add regression coverage for all updated behavior.

lib/diagnostics-collectors.js

@@ -1,9 +1,11 @@
 const fs = require('fs');
 const path = require('path');
+const { getRotatedLogPath } = require('./log-rotation');
 
 const READABLE_LOGS = {
   debug: 'debug',
   fileuploader: 'fileuploader',
+  uploadAudit: 'uploadAudit',
   accountRotation: 'accountRotation',
   crash: 'crashLog'
 };
@@ -38,7 +40,7 @@ function createCollectors(deps) {
     const paths = getAllLogPaths();
     let p = paths[key];
     if (!p) return null;
-    if (backup === 1 || backup === 2) p = `${p}.${backup}`;
+    if (backup === 1 || backup === 2) p = getRotatedLogPath(p, backup);
     return p;
   }
 
@@ -67,15 +69,17 @@ function createCollectors(deps) {
     const paths = getAllLogPaths();
     const dir = paths.logDir;
     const files = [];
+    const readableNames = new Set();
     for (const [name, key] of Object.entries(READABLE_LOGS)) {
       const base = paths[key];
       if (!base) continue;
       const variants = [];
-      for (const suffix of ['', '.1', '.2']) {
-        const fp = base + suffix;
+      for (const backup of [0, 1, 2]) {
+        const fp = backup === 0 ? base : getRotatedLogPath(base, backup);
+        readableNames.add(path.basename(fp));
         try {
           const st = fs.statSync(fp);
-          variants.push({ backup: suffix === '' ? 0 : Number(suffix.slice(1)), sizeBytes: st.size, mtime: st.mtime.toISOString() });
+          variants.push({ backup, sizeBytes: st.size, mtime: st.mtime.toISOString() });
         } catch {}
       }
       files.push({ name, path: base, readable: true, present: variants.length > 0, variants });
@@ -84,7 +88,7 @@ function createCollectors(deps) {
     try {
       siblings = fs.readdirSync(dir)
         .filter(f => /\.log(\.\d+)?$/i.test(f))
-        .filter(f => !files.some(x => path.basename(x.path) === f || f.startsWith(path.basename(x.path))));
+        .filter(f => !readableNames.has(f));
       siblings = siblings.map(f => {
         let size = 0, mtime = null;
         try { const st = fs.statSync(path.join(dir, f)); size = st.size; mtime = st.mtime.toISOString(); } catch {}