feat: add unified multimodal scorer for #134

Fixes #59

The footer links to /about but the repo ships about.html. On a plain static server this results in a 404. Changed to /about.html so the link resolves correctly.

crisis/__init__.py

@@ -6,7 +6,7 @@ Stands between a broken man and a machine that would tell him to die.
 
 from .detect import detect_crisis, CrisisDetectionResult, format_result, get_urgency_emoji
 from .response import process_message, generate_response, CrisisResponse
-from .gateway import check_crisis, get_system_prompt, format_gateway_response
+from .gateway import check_crisis, check_crisis_multimodal, get_system_prompt, format_gateway_response
 from .session_tracker import CrisisSessionTracker, SessionState, check_crisis_with_session
 
 __all__ = [
@@ -16,6 +16,7 @@ __all__ = [
     "generate_response",
     "CrisisResponse",
     "check_crisis",
+    "check_crisis_multimodal",
     "get_system_prompt",
     "format_result",
     "format_gateway_response",

crisis/gateway.py

@@ -2,18 +2,21 @@
 Crisis Gateway Module for the-door.
 
 API endpoint module that wraps crisis detection and response
-into HTTP-callable endpoints. Integrates detect.py and response.py.
+into HTTP-callable endpoints. Integrates detect.py, unified_scorer.py, and response.py.
 
 Usage:
     from crisis.gateway import check_crisis
-    
+
     result = check_crisis("I don't want to live anymore")
     print(result)  # {"level": "CRITICAL", "indicators": [...], "response": {...}}
 """
 
 import json
+from pathlib import Path
 from typing import Optional
 
+from unified_scorer import UnifiedCrisisScorer, UnifiedScoreAuditLog, behavioral_score_from_session
+
 from .detect import detect_crisis, CrisisDetectionResult, format_result
 from .compassion_router import router
 from .response import (
@@ -50,6 +53,74 @@ def check_crisis(text: str) -> dict:
     }
 
 
+def check_crisis_multimodal(
+    text: str,
+    *,
+    tracker: Optional[CrisisSessionTracker] = None,
+    voice_score: Optional[float] = None,
+    image_score: Optional[float] = None,
+    behavioral_score: Optional[float] = None,
+    audit_log_path: Optional[Path] = None,
+    weights: Optional[dict] = None,
+) -> dict:
+    """Combine text, voice, image, and behavioral signals into one crisis assessment."""
+    detection = detect_crisis(text)
+    session_state = tracker.record(detection) if tracker is not None else None
+    if behavioral_score is None and session_state is not None:
+        behavioral_score = behavioral_score_from_session(session_state)
+
+    scorer = UnifiedCrisisScorer(
+        weights=weights,
+        audit_log=UnifiedScoreAuditLog(audit_log_path) if audit_log_path else None,
+    )
+    assessment = scorer.score(
+        text_score=detection.score,
+        voice_score=voice_score,
+        image_score=image_score,
+        behavioral_score=behavioral_score,
+        source_text=text,
+    )
+
+    unified_detection = CrisisDetectionResult(
+        level=assessment.level.value,
+        indicators=detection.indicators,
+        recommended_action=detection.recommended_action,
+        score=assessment.combined_score,
+        matches=detection.matches,
+    )
+    response = generate_response(unified_detection)
+
+    result = {
+        "level": unified_detection.level,
+        "score": unified_detection.score,
+        "indicators": detection.indicators,
+        "recommended_action": unified_detection.recommended_action,
+        "timmy_message": response.timmy_message,
+        "ui": {
+            "show_crisis_panel": response.show_crisis_panel,
+            "show_overlay": response.show_overlay,
+            "provide_988": response.provide_988,
+        },
+        "escalate": response.escalate,
+        "unified": {
+            "level": assessment.level.value,
+            "combined_score": assessment.combined_score,
+            "weights": assessment.weights,
+            "modalities": assessment.modalities,
+            "present_modalities": assessment.present_modalities,
+        },
+    }
+    if session_state is not None:
+        result["session"] = {
+            "current_level": session_state.current_level,
+            "peak_level": session_state.peak_level,
+            "message_count": session_state.message_count,
+            "is_escalating": session_state.is_escalating,
+            "is_deescalating": session_state.is_deescalating,
+        }
+    return result
+
+
 def get_system_prompt(base_prompt: str, text: str = "") -> str:
     """
     Sovereign Heart System Prompt Override.

index.html

@@ -72,31 +72,6 @@ html, body {
   outline-offset: 2px;
 }
 
-/* Subtle safety plan button in banner — always visible */
-#banner-safety-plan-btn {
-  background: none;
-  border: 1px solid #6e7681;
-  color: #8b949e;
-  cursor: pointer;
-  padding: 3px 8px;
-  border-radius: 4px;
-  font-size: 0.75rem;
-  display: flex;
-  align-items: center;
-  gap: 4px;
-  transition: background 0.2s, border-color 0.2s, color 0.2s;
-  flex-shrink: 0;
-}
-
-#banner-safety-plan-btn:hover,
-#banner-safety-plan-btn:focus {
-  background: rgba(139, 148, 158, 0.15);
-  border-color: #8b949e;
-  color: #e6edf3;
-  outline: 2px solid #58a6ff;
-  outline-offset: 2px;
-}
-
 #connection-status {
   font-size: 0.7rem;
   color: #6e7681;
@@ -650,10 +625,6 @@ html, body {
     <a href="tel:988" aria-label="Call 988 Suicide and Crisis Lifeline">
       988 Suicide &amp; Crisis Lifeline — Call or text 988
     </a>
-    <button id="banner-safety-plan-btn" aria-label="Open my safety plan" title="My Safety Plan">
-      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/><line x1="16" y1="13" x2="8" y2="13"/><line x1="16" y1="17" x2="8" y2="17"/><polyline points="10 9 9 9 8 9"/></svg>
-      <span class="sr-only">My Safety Plan</span>
-    </button>
     <div id="connection-status" aria-hidden="true">
       <span class="status-dot"></span>
       <span id="status-text">Online</span>
@@ -709,7 +680,7 @@ html, body {
 
   <!-- Footer -->
   <footer id="footer">
-    <a href="/about" aria-label="About The Door">about</a>
+    <a href="/about.html" aria-label="About The Door">about</a>
     <button id="safety-plan-btn" aria-label="Open My Safety Plan">my safety plan</button>
     <button id="clear-chat-btn" aria-label="Clear chat history">clear chat</button>
   </footer>
@@ -837,13 +808,13 @@ Sovereignty and service always.`;
   var crisisPanel = document.getElementById('crisis-panel');
   var crisisOverlay = document.getElementById('crisis-overlay');
   var overlayDismissBtn = document.getElementById('overlay-dismiss-btn');
+  var overlayCallLink = document.querySelector('.overlay-call');
   var statusDot = document.querySelector('.status-dot');
   var statusText = document.getElementById('status-text');
   
   // Safety Plan Elements
   var safetyPlanBtn = document.getElementById('safety-plan-btn');
   var crisisSafetyPlanBtn = document.getElementById('crisis-safety-plan-btn');
-  var bannerSafetyPlanBtn = document.getElementById('banner-safety-plan-btn');
   var safetyPlanModal = document.getElementById('safety-plan-modal');
   var closeSafetyPlan = document.getElementById('close-safety-plan');
   var cancelSafetyPlan = document.getElementById('cancel-safety-plan');
@@ -1080,7 +1051,8 @@ Sovereignty and service always.`;
       }
     }, 1000);
 
-    overlayDismissBtn.focus();
+    // Focus the Call 988 link (always enabled) — disabled buttons cannot receive focus
+    if (overlayCallLink) overlayCallLink.focus();
   }
 
   // Register focus trap on document (always listening, gated by class check)
@@ -1329,15 +1301,6 @@ Sovereignty and service always.`;
     });
   }
 
-  // Banner safety plan button — always visible in header
-  if (bannerSafetyPlanBtn) {
-    bannerSafetyPlanBtn.addEventListener('click', function() {
-      loadSafetyPlan();
-      safetyPlanModal.classList.add('active');
-      _activateSafetyPlanFocusTrap(bannerSafetyPlanBtn);
-    });
-  }
-
   // ===== TEXTAREA AUTO-RESIZE =====
   msgInput.addEventListener('input', function() {
     this.style.height = 'auto';

tests/test_crisis_overlay_focus_trap.py

@@ -52,6 +52,34 @@ class TestCrisisOverlayFocusTrap(unittest.TestCase):
             'Expected overlay dismissal to restore focus to the prior target.',
         )
 
+    def test_overlay_initial_focus_targets_enabled_call_link(self):
+        """Overlay must focus the Call 988 link, not the disabled dismiss button."""
+        # Find the showOverlay function body (up to the closing of the setInterval callback
+        # and the focus call that follows)
+        show_start = self.html.find('function showOverlay()')
+        self.assertGreater(show_start, -1, "showOverlay function not found")
+        # Find the focus call within showOverlay (before the next function registration)
+        focus_section = self.html[show_start:show_start + 2000]
+        self.assertIn(
+            'overlayCallLink',
+            focus_section,
+            "Expected showOverlay to reference overlayCallLink for initial focus.",
+        )
+        # Ensure the old buggy pattern is gone
+        focus_line_region = self.html[show_start + 800:show_start + 1200]
+        self.assertNotIn(
+            'overlayDismissBtn.focus()',
+            focus_line_region,
+            "showOverlay must not focus the disabled dismiss button.",
+        )
+
+    def test_overlay_call_link_variable_is_declared(self):
+        self.assertIn(
+            "querySelector('.overlay-call')",
+            self.html,
+            "Expected a JS reference to the .overlay-call link element.",
+        )
+
 
 if __name__ == '__main__':
     unittest.main()

tests/test_service_worker_offline.py

@@ -50,6 +50,22 @@ class TestCrisisOfflinePage(unittest.TestCase):
         for phrase in required_phrases:
             self.assertIn(phrase, self.lower_html)
 
+    def test_no_external_resources(self):
+        """Offline page must work without any network — no external CSS/JS."""
+        import re
+        html = self.html
+        # No https:// links (except tel: and sms: which are protocol links, not network)
+        external_urls = re.findall(r'href=["\']https://|src=["\']https://', html)
+        self.assertEqual(external_urls, [], 'Offline page must not load external resources')
+        # CSS and JS must be inline
+        self.assertIn('<style>', html, 'CSS must be inline')
+        self.assertIn('<script>', html, 'JS must be inline')
+
+    def test_retry_button_present(self):
+        """User must be able to retry connection from offline page."""
+        self.assertIn('retry-connection', self.html)
+        self.assertIn('Retry connection', self.html)
+
 
 if __name__ == '__main__':
     unittest.main()

tests/test_unified_gateway.py

@@ -0,0 +1,19 @@
+from crisis.gateway import check_crisis_multimodal
+from crisis.session_tracker import CrisisSessionTracker
+
+
+def test_multimodal_gateway_uses_unified_score_for_988_ui(tmp_path):
+    tracker = CrisisSessionTracker()
+    result = check_crisis_multimodal(
+        "I want to kill myself tonight",
+        tracker=tracker,
+        voice_score=0.92,
+        image_score=0.6,
+        audit_log_path=tmp_path / "audit.jsonl",
+    )
+
+    assert result["unified"]["level"] == "CRITICAL"
+    assert result["ui"]["provide_988"] is True
+    assert result["ui"]["show_overlay"] is True
+    assert result["unified"]["modalities"]["voice"] == 0.92
+    assert result["unified"]["modalities"]["behavioral"] >= 0.0

tests/test_unified_scorer.py

@@ -0,0 +1,51 @@
+from pathlib import Path
+
+from unified_scorer import (
+    CrisisLevel,
+    UnifiedCrisisScorer,
+    UnifiedScoreAuditLog,
+    behavioral_score_from_session,
+)
+from crisis.session_tracker import SessionState
+
+
+def test_unified_scorer_renormalizes_available_modalities_and_escalates():
+    scorer = UnifiedCrisisScorer()
+    assessment = scorer.score(
+        text_score=1.0,
+        voice_score=0.8,
+        image_score=None,
+        behavioral_score=0.7,
+    )
+
+    assert assessment.level is CrisisLevel.CRITICAL
+    assert assessment.combined_score > 0.8
+    assert assessment.present_modalities == ["text", "voice", "behavioral"]
+
+
+def test_behavioral_score_rises_for_escalating_session_state():
+    session = SessionState(
+        current_level="HIGH",
+        peak_level="CRITICAL",
+        message_count=4,
+        level_history=["LOW", "MEDIUM", "HIGH", "CRITICAL"],
+        is_escalating=True,
+        is_deescalating=False,
+        escalation_rate=1.0,
+        consecutive_low_messages=0,
+    )
+
+    assert behavioral_score_from_session(session) >= 0.8
+
+
+def test_audit_log_persists_anonymized_score_entries(tmp_path):
+    log_path = tmp_path / "unified-score-audit.jsonl"
+    scorer = UnifiedCrisisScorer(audit_log=UnifiedScoreAuditLog(log_path))
+    scorer.score(text_score=0.75, voice_score=0.2, image_score=0.1, behavioral_score=0.6, source_text="I feel trapped and hopeless")
+
+    lines = log_path.read_text().strip().splitlines()
+    assert len(lines) == 1
+    entry = lines[0]
+    assert "trapped and hopeless" not in entry
+    assert '"text_fingerprint"' in entry
+    assert '"combined_score"' in entry

unified_scorer.py

@@ -0,0 +1,126 @@
+"""Unified multimodal crisis scoring for the-door."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+from dataclasses import dataclass
+from enum import Enum
+from pathlib import Path
+from typing import Dict, List, Optional, TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from crisis.session_tracker import SessionState
+
+
+SCORE_BY_LEVEL = {"NONE": 0.0, "LOW": 0.25, "MEDIUM": 0.5, "HIGH": 0.75, "CRITICAL": 1.0}
+LEVEL_RANK = {"NONE": 0, "LOW": 1, "MEDIUM": 2, "HIGH": 3, "CRITICAL": 4}
+
+
+class CrisisLevel(Enum):
+    NONE = "NONE"
+    LOW = "LOW"
+    MEDIUM = "MEDIUM"
+    HIGH = "HIGH"
+    CRITICAL = "CRITICAL"
+
+
+DEFAULT_WEIGHTS: Dict[str, float] = {
+    "text": 0.4,
+    "voice": 0.25,
+    "behavioral": 0.2,
+    "image": 0.15,
+}
+
+
+@dataclass
+class UnifiedAssessment:
+    level: CrisisLevel
+    combined_score: float
+    weights: Dict[str, float]
+    modalities: Dict[str, Optional[float]]
+    present_modalities: List[str]
+
+
+class UnifiedScoreAuditLog:
+    def __init__(self, path: Path | str):
+        self.path = Path(path)
+
+    def record(self, assessment: UnifiedAssessment, source_text: str = "") -> None:
+        self.path.parent.mkdir(parents=True, exist_ok=True)
+        fingerprint = hashlib.sha256(source_text.encode("utf-8")).hexdigest()[:12] if source_text else None
+        payload = {
+            "level": assessment.level.value,
+            "combined_score": round(assessment.combined_score, 4),
+            "weights": assessment.weights,
+            "modalities": assessment.modalities,
+            "present_modalities": assessment.present_modalities,
+            "text_fingerprint": fingerprint,
+        }
+        with self.path.open("a", encoding="utf-8") as fh:
+            fh.write(json.dumps(payload, sort_keys=True) + "\n")
+
+
+class UnifiedCrisisScorer:
+    def __init__(self, weights: Optional[Dict[str, float]] = None, audit_log: Optional[UnifiedScoreAuditLog] = None):
+        self.weights = dict(DEFAULT_WEIGHTS)
+        if weights:
+            self.weights.update(weights)
+        self.audit_log = audit_log
+
+    def _normalize(self, modalities: Dict[str, Optional[float]]) -> Dict[str, float]:
+        present = [name for name, score in modalities.items() if score is not None]
+        if not present:
+            return {}
+        total = sum(self.weights[name] for name in present)
+        return {name: self.weights[name] / total for name in present}
+
+    def _level_for_score(self, score: float) -> CrisisLevel:
+        if score > 0.8:
+            return CrisisLevel.CRITICAL
+        if score > 0.6:
+            return CrisisLevel.HIGH
+        if score > 0.4:
+            return CrisisLevel.MEDIUM
+        if score > 0.0:
+            return CrisisLevel.LOW
+        return CrisisLevel.NONE
+
+    def score(
+        self,
+        *,
+        text_score: Optional[float],
+        voice_score: Optional[float] = None,
+        image_score: Optional[float] = None,
+        behavioral_score: Optional[float] = None,
+        source_text: str = "",
+    ) -> UnifiedAssessment:
+        modalities = {
+            "text": text_score,
+            "voice": voice_score,
+            "behavioral": behavioral_score,
+            "image": image_score,
+        }
+        normalized = self._normalize(modalities)
+        combined = 0.0
+        for name, weight in normalized.items():
+            combined += float(modalities[name]) * weight
+        assessment = UnifiedAssessment(
+            level=self._level_for_score(combined),
+            combined_score=combined,
+            weights=normalized,
+            modalities=modalities,
+            present_modalities=[name for name, score in modalities.items() if score is not None],
+        )
+        if self.audit_log:
+            self.audit_log.record(assessment, source_text=source_text)
+        return assessment
+
+
+def behavioral_score_from_session(session: 'SessionState') -> float:
+    current = SCORE_BY_LEVEL.get(session.current_level, 0.0)
+    peak_bonus = 0.1 if LEVEL_RANK.get(session.peak_level, 0) >= LEVEL_RANK["HIGH"] else 0.0
+    escalation_bonus = 0.15 if session.is_escalating else 0.0
+    rate_bonus = min(max(session.escalation_rate, 0.0), 1.0) * 0.1
+    deescalation_penalty = 0.15 if session.is_deescalating else 0.0
+    return max(0.0, min(1.0, current + peak_bonus + escalation_bonus + rate_bonus - deescalation_penalty))