fix(#627): Integrate quality gate with pipeline orchestrator

- Import task_gate.pre_task_gate
- Call pre_task_gate before assign_issue in dispatch_cycle
- Track gate pass/fail statistics
- Add gate stats to orchestrator report
- Handle gate errors gracefully

hermes-sovereign/orchestrator/orchestrator.py

@@ -19,6 +19,18 @@ import urllib.error
 import urllib.parse
 from datetime import datetime, timezone
 
+
+# Quality gate integration (#627)
+try:
+    from scripts.task_gate import pre_task_gate, post_task_gate
+    QUALITY_GATE_AVAILABLE = True
+except ImportError:
+    QUALITY_GATE_AVAILABLE = False
+    print('[WARN] task_gate not available -- quality checks disabled')
+
+# Pipeline statistics
+PIPELINE_STATS = {"gate_pass": 0, "gate_fail": 0, "gate_warn": 0, "requeued": 0}
+
 # ---------------------------------------------------------------------------
 # CONFIG
 # ---------------------------------------------------------------------------
@@ -531,6 +543,11 @@ def generate_report(backlog, dispatched, skipped, agent_status, dry_run=False):
     # Top 5 unassigned
     unassigned = [i for i in backlog if not i["assignees"]][:5]
     lines.append("-- Top 5 Unassigned (by priority) --")
+    # Quality gate statistics (#627)
+    if any(PIPELINE_STATS.values()):
+        lines.append("-- Quality Gate --")
+        lines.append(f"  Passed: {PIPELINE_STATS['gate_pass']} | Failed: {PIPELINE_STATS['gate_fail']} | Warnings: {PIPELINE_STATS['gate_warn']}")
+        lines.append("")
     for i in unassigned:
         lines.append(f"  [{i['score']}] {i['repo']}#{i['number']}: {i['title'][:55]}")
     lines.append("")