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>

modules/story.py

@@ -411,7 +411,7 @@ def update_tracking(folder, chapter_num, chapter_text, current_tracking):
     {json.dumps(current_tracking)}
     
     NEW_TEXT:
-    {chapter_text[:500000]} 
+    {chapter_text[:20000]}
     
     OPERATIONS:
     1. EVENTS: Append 1-3 key plot points to 'events'.
@@ -594,7 +594,7 @@ def refine_persona(bp, text, folder):
     except: pass
     return ad
 
-def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None):
+def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None, next_chapter_hint=""):
     pacing = chap.get('pacing', 'Standard')
     est_words = chap.get('estimated_words', 'Flexible')
     utils.log("WRITER", f"Drafting Ch {chap['chapter_number']} ({pacing} | ~{est_words} words): {chap['title']}")
@@ -662,6 +662,13 @@ def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None):
         trunc_content = prev_content[-3000:] if len(prev_content) > 3000 else prev_content
         prev_context_block = f"\nPREVIOUS CHAPTER TEXT (For Tone & Continuity):\n{trunc_content}\n"
 
+    # Strip future planning notes (key_events) from character context — the writer
+    # should not know what is *planned* to happen; only name, role, and description.
+    chars_for_writer = [
+        {"name": c.get("name"), "role": c.get("role"), "description": c.get("description", "")}
+        for c in bp.get('characters', [])
+    ]
+
     total_chapters = ls.get('chapters', '?')
     prompt = f"""
     ROLE: Fiction Writer
@@ -705,7 +712,9 @@ def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None):
     - CHARACTER INTERACTIONS: If characters are meeting for the first time in the summary, treat them as strangers.
     - SENTENCE VARIETY: Avoid repetitive sentence structures (e.g. starting multiple sentences with "He" or "She"). Vary sentence length to create rhythm.
     - GENRE CONSISTENCY: Ensure all introductions of characters, places, items, or actions are strictly appropriate for the {genre} genre. Avoid anachronisms or tonal clashes.
-    
+    - DIALOGUE VOICE: Every character speaks with their own distinct voice (see CHARACTER TRACKING for speech styles). No two characters may sound the same. Vary sentence length, vocabulary, and register per character.
+    - CHAPTER HOOK: End this chapter with unresolved tension — a decision pending, a threat imminent, or a question unanswered.{f" Seed subtle anticipation for the next scene: '{next_chapter_hint}'." if next_chapter_hint else " Do not neatly resolve all threads."}
+
     QUALITY_CRITERIA:
     1. ENGAGEMENT & TENSION: Grip the reader. Ensure conflict/tension in every scene.
     2. SCENE EXECUTION: Flesh out the middle. Avoid summarizing key moments.
@@ -724,7 +733,7 @@ def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None):
     CONTEXT:
     - STORY_SO_FAR: {prev_sum}
     {prev_context_block}
-    - CHARACTERS: {json.dumps(bp['characters'])}
+    - CHARACTERS: {json.dumps(chars_for_writer)}
     {char_visuals}
     - SCENE_BEATS: {json.dumps(chap['beats'])}
     
@@ -735,13 +744,15 @@ def write_chapter(chap, bp, folder, prev_sum, tracking=None, prev_content=None):
         resp_draft = ai.model_writer.generate_content(prompt)
         utils.log_usage(folder, ai.model_writer.name, resp_draft.usage_metadata)
         current_text = resp_draft.text
+        draft_words = len(current_text.split()) if current_text else 0
+        utils.log("WRITER", f"  -> Draft: {draft_words:,} words (target: ~{est_words})")
     except Exception as e:
         utils.log("WRITER", f"⚠️ Failed Ch {chap['chapter_number']}: {e}")
         return f"## Chapter {chap['chapter_number']} Failed\n\nError: {e}"
 
     # Refinement Loop
     max_attempts = 5
-    SCORE_AUTO_ACCEPT = 9
+    SCORE_AUTO_ACCEPT = 8   # 8 = professional quality; no marginal gain from extra refinement
     SCORE_PASSING = 7
     SCORE_REWRITE_THRESHOLD = 6