STEP35-476: Integrate dispatch_router into orchestrator triage loop

- Added dispatch_router.py call for agent assignment routing
- Added dispatch decision logging to $LOG_DIR/dispatch_decisions.log
- Fall back to 'claude' if router fails
- Logs agent, score, category, reason per dispatch

bin/timmy-orchestrator.sh

@@ -129,20 +129,42 @@ Preserved by timmy-orchestrator to prevent loss." 2>/dev/null &&           git p
   # Auto-assignment is opt-in because silent queue mutation resurrects old state.
   if [ "$unassigned_count" -gt 0 ]; then
     if [ "$AUTO_ASSIGN_UNASSIGNED" = "1" ]; then
-      log "Assigning $unassigned_count issues to claude..."
-      while IFS= read -r line; do
-        local repo=$(echo "$line" | sed 's/.*REPO=\([^ ]*\).*/\1/')
-        local num=$(echo "$line" | sed 's/.*NUM=\([^ ]*\).*/\1/')
-        curl -sf -X PATCH "$GITEA_URL/api/v1/repos/$repo/issues/$num" \
-          -H "Authorization: token $GITEA_TOKEN" \
-          -H "Content-Type: application/json" \
-          -d '{"assignees":["claude"]}' >/dev/null 2>&1 && \
-          log "  Assigned #$num ($repo) to claude"
-      done < "$state_dir/unassigned.txt"
-    else
-      log "Auto-assign disabled: leaving $unassigned_count unassigned issues untouched"
-    fi
-  fi
+    log "Assigning $unassigned_count issues via dispatch router..."
+    DISPATCH_LOG="$LOG_DIR/dispatch_decisions.log"
+    while IFS= read -r line; do
+      local repo=$(echo "$line" | sed 's/.*REPO=\([^ ]*\).*/
/')
+      local num=$(echo "$line" | sed 's/.*NUM=\([^ ]*\).*/
/')
+      local title=$(echo "$line" | sed 's/.*TITLE=//')
+
+      # Call dispatch_router to pick best agent
+      local route_json
+      route_json=$(python3 "$SCRIPT_DIR/tools/dispatch_router.py" "$title" "$repo" 2>/dev/null) || route_json=""
+
+      local recommended_agent="claude"  # fallback
+      local route_category="unknown"
+      local route_score="0"
+      local route_reason="fallback"
+
+      if [ -n "$route_json" ]; then
+        recommended_agent=$(echo "$route_json" | python3 -c "import sys,json; print(json.load(sys.stdin).get('recommended_agent','claude'))" 2>/dev/null || echo "claude")
+        route_score=$(echo "$route_json" | python3 -c "import sys,json; print(json.load(sys.stdin).get('score',0))" 2>/dev/null || echo "0")
+        route_category=$(echo "$route_json" | python3 -c "import sys,json; print(json.load(sys.stdin).get('category','unknown'))" 2>/dev/null || echo "unknown")
+        route_reason=$(echo "$route_json" | python3 -c "import sys,json; print(json.load(sys.stdin).get('reason',''))" 2>/dev/null || echo "")
+      fi
+
+      # Assign via API
+      curl -sf -X PATCH "$GITEA_URL/api/v1/repos/$repo/issues/$num" \\
+        -H "Authorization: token $GITEA_TOKEN" \\
+        -H "Content-Type: application/json" \\
+        -d "{\"assignees\":[\"$recommended_agent\"]}" >/dev/null 2>&1 && \\
+        log "  Assigned #$num ($repo) to $recommended_agent [score=$route_score cat=$route_category]"
+
+      # Log dispatch decision for audit (RFC3339 timestamp)
+      printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\n' \
+        "$(date -u +"%Y-%m-%dT%H:%M:%SZ")" "$num" "$repo" "$title" "$recommended_agent" "$route_score" "$route_category|$route_reason" \
+        >> "$DISPATCH_LOG"
+    done < "$state_dir/unassigned.txt"
+  else  fi
 
   # Phase 2: PR review via Timmy (LLM)
   if [ "$pr_count" -gt 0 ]; then