fix(reader): preserve full context sentence with abbreviations (Mr., Mrs., etc.) and log bug fix

app/static/js/modules/reader.js

@@ -1070,11 +1070,39 @@ export function renderInteractiveSpans(container, text, contextText, knownWordsM
     });
 }
 
+const READER_HONORIFICS = [
+    'Mr.', 'Mrs.', 'Ms.', 'Dr.', 'Prof.', 'St.', 'vs.', 'etc.', 'e.g.', 'i.e.', 'Jr.', 'Sr.',
+    'Capt.', 'Col.', 'Gen.', 'Lt.', 'Sgt.', 'Rev.', 'Hon.'
+];
+
 export function extractContextSentence(fullText, word) {
     if (!fullText) return '';
-    const re = new RegExp(`([^.!?\\n]*?\\b${escapeRegex(word)}\\b[^.!?\\n]*[.!?]?)`, 'i');
-    const m = fullText.match(re);
-    if (m && m[1]) return m[1].trim();
+    let protectedText = fullText;
+    for (const h of READER_HONORIFICS) {
+        if (protectedText.toLowerCase().includes(h.toLowerCase())) {
+            const safe = h.replace(/\./g, '§DOT§');
+            const reH = new RegExp(escapeRegex(h), 'gi');
+            protectedText = protectedText.replace(reH, safe);
+        }
+    }
+    // Protect decimal numbers (e.g. 3.14, 1.5)
+    protectedText = protectedText.replace(/(\d+)\.(\d+)/g, '$1§DOT§$2');
+
+    // Split sentences on terminal punctuation (.!?) followed by optional quotes/brackets and whitespace
+    const marked = protectedText.replace(/([.!?]['"”’»)]*)\s+/g, '$1§SEP§');
+    const rawSentences = marked.split('§SEP§');
+
+    const cleanWord = (word || '').trim();
+    if (cleanWord) {
+        const escaped = escapeRegex(cleanWord);
+        const wordRe = new RegExp(`(?:^|\\W)${escaped}(?:$|\\W)`, 'i');
+        for (const s of rawSentences) {
+            if (wordRe.test(s)) {
+                return s.replace(/§DOT§/g, '.').trim();
+            }
+        }
+    }
+
     return fullText.slice(0, 160).trim();
 }