v1.4.0: Organic writing, speed, and log improvements

Organic book quality:
- write_chapter: strip key_events spoilers from character context so the writer
  doesn't know planned future events when writing early chapters
- write_chapter: added next_chapter_hint — seeds anticipation for the next scene
  in the final paragraphs of each chapter for natural story flow
- write_chapter: added DIALOGUE VOICE instruction referencing CHARACTER TRACKING
  speech styles so every character sounds distinctly different
- Lowered SCORE_AUTO_ACCEPT 9→8 to stop over-refining already-professional drafts

Speed improvements:
- check_pacing: reduced from every chapter to every other chapter (~50% fewer calls)
- refine_persona: reduced from every 3 to every 5 chapters (~40% fewer calls)
- Resume summary rebuild: uses first + last-4 chapters instead of all chapters
  to avoid massive prompts when resuming mid-book
- Summary context sent to writer capped at 8000 chars (most-recent events)
- update_tracking text cap lowered 500000→20000 (covers any realistic chapter)

Logging and progress bars:
- Progress bar updates at chapter START, not just after completion
- Chapter banner logged before each write so the log shows which chapter is active
- Word count logged after first draft (e.g. "Draft: 2,341 words (target: ~2200)")
- Word count added to chapter completion TIMING line
- Pacing check now logs "Pacing OK" with reason when no intervention needed
- utils: added log_banner() helper for phase separator lines

UI:
- run_details.html: log lines are now phase-coloured (WRITER=cyan, ARCHITECT=green,
  TIMING=gray, SYSTEM=yellow, TRACKER=purple, RESUME=orange, etc.)
- Status bar shows current active phase (e.g. "Status: Running — WRITER")

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

templates/run_details.html

@@ -337,20 +337,69 @@
     const statusText = document.getElementById('status-text');
     const statusBar = document.getElementById('status-bar');
     const costEl = document.getElementById('run-cost');
-    
+
+    let lastLog = '';
+
+    // Phase → colour mapping (matches utils.log phase labels)
+    const PHASE_COLORS = {
+        'WRITER':    '#4fc3f7',
+        'ARCHITECT': '#81c784',
+        'TIMING':    '#78909c',
+        'SYSTEM':    '#fff176',
+        'TRACKER':   '#ce93d8',
+        'RESUME':    '#ffb74d',
+        'SERIES':    '#64b5f6',
+        'ENRICHER':  '#4dd0e1',
+        'HARVESTER': '#ff8a65',
+        'EDITOR':    '#f48fb1',
+    };
+
+    function escapeHtml(str) {
+        return str.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+    }
+
+    function colorizeLog(logText) {
+        if (!logText) return '';
+        return logText.split('\n').map(line => {
+            const m = line.match(/^(\[[\d:]+\])\s+(\w+)\s+\|(.*)$/);
+            if (!m) return '<span style="color:#666">' + escapeHtml(line) + '</span>';
+            const [, ts, phase, msg] = m;
+            const color = PHASE_COLORS[phase] || '#aaaaaa';
+            return '<span style="color:#555">' + escapeHtml(ts) + '</span> '
+                 + '<span style="color:' + color + ';font-weight:bold">' + phase.padEnd(14) + '</span>'
+                 + '<span style="color:#ccc">|' + escapeHtml(msg) + '</span>';
+        }).join('\n');
+    }
+
+    function getCurrentPhase(logText) {
+        if (!logText) return '';
+        const lines = logText.split('\n').filter(l => l.trim());
+        for (let k = lines.length - 1; k >= 0; k--) {
+            const m = lines[k].match(/\]\s+(\w+)\s+\|/);
+            if (m) return m[1];
+        }
+        return '';
+    }
+
     function updateLog() {
         fetch(`/run/${runId}/status`)
             .then(response => response.json())
             .then(data => {
-                // Update Status Text
-                statusText.innerText = "Status: " + data.status.charAt(0).toUpperCase() + data.status.slice(1);
+                // Update Status Text + current phase
+                const statusLabel = data.status.charAt(0).toUpperCase() + data.status.slice(1);
+                if (data.status === 'running') {
+                    const phase = getCurrentPhase(data.log);
+                    statusText.innerText = 'Status: Running' + (phase ? ' — ' + phase : '');
+                } else {
+                    statusText.innerText = 'Status: ' + statusLabel;
+                }
                 costEl.innerText = '$' + parseFloat(data.cost).toFixed(4);
-                
+
                 // Update Status Bar
                 if (data.status === 'running' || data.status === 'queued') {
                     statusBar.className = "progress-bar progress-bar-striped progress-bar-animated";
                     statusBar.style.width = (data.percent || 5) + "%";
-                    
+
                     let label = (data.percent || 0) + "%";
                     if (data.status === 'running' && data.percent > 2 && data.start_time) {
                         const elapsed = (Date.now() / 1000) - data.start_time;
@@ -371,15 +420,16 @@
                     statusBar.innerText = "";
                 }
 
-                // Update Log (only if changed to avoid scroll jitter)
-                if (consoleEl.innerText !== data.log) {
+                // Update Log with phase colorization (only if changed to avoid scroll jitter)
+                if (lastLog !== data.log) {
+                    lastLog = data.log;
                     const isScrolledToBottom = consoleEl.scrollHeight - consoleEl.clientHeight <= consoleEl.scrollTop + 50;
-                    consoleEl.innerText = data.log;
+                    consoleEl.innerHTML = colorizeLog(data.log);
                     if (isScrolledToBottom) {
                         consoleEl.scrollTop = consoleEl.scrollHeight;
                     }
                 }
-                
+
                 // Poll if running
                 if (data.status === 'running' || data.status === 'queued') {
                     setTimeout(updateLog, 2000);