merge: integrate claude/read-repo-YMu21 branch

Merged changes from the other session:
- Ko-fi support link in options footer
- PPI → PII renaming across codebase
- Legal/licensing updates (stronger disclaimer, non-commercial only)
- Custom secret/auto-redact patterns
- Internal refactoring of secret scanner to auto-redact naming
- Custom domains in popup Options tab
- Additional AI services (Perplexity, DeepSeek, HuggingChat, Poe)
- Developer sites (GitHub, GitLab, Reddit, StackOverflow, Pastebin)
- Dynamic content script registration for custom domains

Resolved conflicts in options.html and popup.html (kept newer
"Auto Redact" naming with custom patterns description).

https://claude.ai/code/session_01SWSwDfMVij53bCTNSCLMwn

src/popup/popup.html

@@ -198,15 +198,15 @@
     <section class="tab-content" id="tab-options">
       <div class="setting-item">
         <div class="setting-label">
-          <strong>Auto-redact secrets</strong>
-          <span class="setting-desc">Automatically redact API keys, tokens, passwords, SSNs, credit cards</span>
+          <strong>Auto Redact</strong>
+          <span class="setting-desc">Automatically redact API keys, tokens, passwords, SSNs, credit cards, and custom patterns</span>
         </div>
-        <label class="toggle"><input type="checkbox" id="optSecretScanning" checked><span class="toggle-slider"></span></label>
+        <label class="toggle"><input type="checkbox" id="optAutoRedact" checked><span class="toggle-slider"></span></label>
       </div>
 
       <div class="setting-item">
         <div class="setting-label">
-          <strong>Auto-detect PPI</strong>
+          <strong>Auto-detect PII</strong>
           <span class="setting-desc">Warn about unconfigured personal data (IPs, addresses, paths)</span>
         </div>
         <label class="toggle"><input type="checkbox" id="optAutoDetect" checked><span class="toggle-slider"></span></label>
@@ -214,8 +214,8 @@
 
       <div class="setting-item">
         <div class="setting-label">
-          <strong>Auto-redact detected PPI</strong>
-          <span class="setting-desc">Replace detected PPI with placeholders on send</span>
+          <strong>Auto-redact detected PII</strong>
+          <span class="setting-desc">Replace detected PII with placeholders on send</span>
         </div>
         <label class="toggle"><input type="checkbox" id="optAutoRedact" checked><span class="toggle-slider"></span></label>
       </div>
@@ -231,7 +231,7 @@
       <div class="setting-item">
         <div class="setting-label">
           <strong>Document scan preview</strong>
-          <span class="setting-desc">Show PPI findings before uploading documents</span>
+          <span class="setting-desc">Show PII findings before uploading documents</span>
         </div>
         <label class="toggle"><input type="checkbox" id="optDocPreview" checked><span class="toggle-slider"></span></label>
       </div>
@@ -271,9 +271,13 @@
         AES-256 encrypted at rest — unreadable without your password.</span>
       </div>
       <div class="privacy-note" style="color:#b45309;background:#fef3c7;padding:6px 8px;border-radius:4px;margin-bottom:6px">
-        Silent Send is a convenience tool, not a security guarantee. It can miss
-        PPI in images, file uploads, unusual name forms, or data you forgot to
-        configure. Always verify sensitive messages before sending.
+        Silent Send is a convenience tool, not a security guarantee. It reduces
+        but cannot eliminate the risk of sharing personal data. It may miss PII
+        in images, unusual formats, or data you haven't configured. Third-party
+        sites may change how they send data at any time, which can cause missed
+        substitutions without warning. Always verify sensitive messages before
+        sending. By using this extension, you accept full responsibility for
+        verifying your data is protected.
       </div>
     </footer>
   </div>

src/popup/popup.js

@@ -1,6 +1,6 @@
 import SubstitutionEngine from '../lib/substitution-engine.js';
 import SmartPatterns from '../lib/smart-patterns.js';
-import SecretScanner from '../lib/secret-scanner.js';
+import AutoRedact from '../lib/auto-redact.js';
 import AutoDetect from '../lib/auto-detect.js';
 import Storage from '../lib/storage.js';
 import SilentSendSync from '../lib/sync.js';
@@ -214,7 +214,7 @@ async function initUnlockedUI() {
   });
 
   // Load options tab settings
-  $('#optSecretScanning').checked = settings.secretScanning !== false;
+  $('#optAutoRedact').checked = settings.autoRedact !== false;
   $('#optAutoDetect').checked = settings.autoDetect !== false;
   $('#optAutoRedact').checked = settings.autoRedactDetected !== false;
   $('#optHighlights').checked = settings.showHighlights || false;
@@ -223,7 +223,7 @@ async function initUnlockedUI() {
 
   // Options tab change handlers
   const optHandlers = [
-    ['optSecretScanning', 'secretScanning'],
+    ['optAutoRedact', 'autoRedact'],
     ['optAutoDetect', 'autoDetect'],
     ['optAutoRedact', 'autoRedactDetected'],
     ['optHighlights', 'showHighlights'],
@@ -715,16 +715,16 @@ function renderTestDiff() {
 
   const smartResult = SmartPatterns.substitute(input, identity);
   const explicitResult = SubstitutionEngine.substitute(smartResult.text, mappings);
-  const secretResult = SecretScanner.redact(explicitResult.text);
+  const redactResult = AutoRedact.redact(explicitResult.text, settings.customRedactPatterns);
 
   const allReplacements = [
     ...smartResult.replacements,
     ...explicitResult.replacements,
-    ...secretResult.redactions,
+    ...redactResult.redactions,
   ];
-  const finalText = secretResult.text;
+  const finalText = redactResult.text;
 
-  if (finalText === input && secretResult.warnings.length === 0) {
+  if (finalText === input && redactResult.warnings.length === 0) {
     output.textContent = input;
     stats.textContent = 'No substitutions detected';
     return;
@@ -740,8 +740,8 @@ function renderTestDiff() {
       `<span class="sub-highlight" title="Was: ${escapeHtml(r.original)} [${r.pattern || r.category}]">${escapedReplaced}</span>`
     );
   }
-  // Highlight secret redactions in red
-  for (const r of secretResult.redactions) {
+  // Highlight auto-redactions in red
+  for (const r of redactResult.redactions) {
     const escapedReplaced = escapeHtml(r.replaced);
     html = html.replace(
       escapedReplaced,
@@ -752,28 +752,28 @@ function renderTestDiff() {
 
   const smartCount = smartResult.replacements.length;
   const explicitCount = explicitResult.replacements.length;
-  const secretCount = secretResult.redactions.length;
-  const warnCount = secretResult.warnings.length;
+  const redactCount = redactResult.redactions.length;
+  const warnCount = redactResult.warnings.length;
   const parts = [];
   if (smartCount > 0) parts.push(`${smartCount} smart`);
   if (explicitCount > 0) parts.push(`${explicitCount} explicit`);
-  if (secretCount > 0) parts.push(`${secretCount} secrets redacted`);
+  if (redactCount > 0) parts.push(`${redactCount} auto-redacted`);
   if (warnCount > 0) parts.push(`${warnCount} warnings`);
 
-  // Auto-detect unconfigured PPI in the final text
-  const ppiWarnings = AutoDetect.scan(finalText, identity);
-  if (ppiWarnings.length > 0) parts.push(`${ppiWarnings.length} PPI detected`);
+  // Auto-detect unconfigured PII in the final text
+  const piiWarnings = AutoDetect.scan(finalText, identity);
+  if (piiWarnings.length > 0) parts.push(`${piiWarnings.length} PII detected`);
 
   stats.textContent = `${allReplacements.length} substitution${allReplacements.length !== 1 ? 's' : ''} (${parts.join(', ')})`;
 
-  // Show PPI warnings below stats
-  if (ppiWarnings.length > 0) {
-    const ppiDiv = document.createElement('div');
-    safeHTML(ppiDiv, `<div style="margin-top:6px;padding:6px 8px;background:#fef3c7;border-radius:4px;color:#92400e;font-size:11px">
-      <strong>Unconfigured PPI detected:</strong>
-      ${ppiWarnings.map(w => `<div style="margin-top:3px"><code style="background:#fff;padding:1px 4px;border-radius:2px;color:#b45309">${escapeHtml(w.value)}</code> — ${w.hint}</div>`).join('')}
+  // Show PII warnings below stats
+  if (piiWarnings.length > 0) {
+    const piiDiv = document.createElement('div');
+    safeHTML(piiDiv, `<div style="margin-top:6px;padding:6px 8px;background:#fef3c7;border-radius:4px;color:#92400e;font-size:11px">
+      <strong>Unconfigured PII detected:</strong>
+      ${piiWarnings.map(w => `<div style="margin-top:3px"><code style="background:#fff;padding:1px 4px;border-radius:2px;color:#b45309">${escapeHtml(w.value)}</code> — ${w.hint}</div>`).join('')}
     </div>`);
-    stats.appendChild(ppiDiv);
+    stats.appendChild(piiDiv);
   }
 }