feat: add governed knowledge lifecycle

backend/apps/knowledge/management/commands/__init__.py

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+

backend/apps/knowledge/management/commands/rebuild_knowledge_embeddings.py

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+from django.core.management.base import BaseCommand
+
+from apps.knowledge.models import KnowledgeDocument, KnowledgeItem
+from apps.knowledge.services import (
+    index_published_solution,
+    index_resolved_ticket,
+    rebuild_document_chunks,
+    rebuild_item_chunks,
+)
+from apps.solutions.models import Solution
+from apps.tickets.models import Ticket
+
+
+class Command(BaseCommand):
+    help = "使用当前 Embedding 部署重建知识、文档和已发布解决方案向量"
+
+    def handle(self, *args, **options):
+        item_count = 0
+        document_count = 0
+        solution_count = 0
+        ticket_count = 0
+        for item in KnowledgeItem.objects.select_related("knowledge_base").iterator():
+            rebuild_item_chunks(item)
+            item_count += 1
+        for document in KnowledgeDocument.objects.select_related("knowledge_base").iterator():
+            rebuild_document_chunks(document)
+            document_count += 1
+        for solution in Solution.objects.filter(status="published").iterator():
+            index_published_solution(solution)
+            solution_count += 1
+        for ticket in (
+            Ticket.objects.filter(
+                status__in=["resolved", "closed"],
+                archived_at__isnull=True,
+            )
+            .select_related("category", "resolution")
+            .iterator()
+        ):
+            index_resolved_ticket(ticket)
+            ticket_count += 1
+        self.stdout.write(
+            self.style.SUCCESS(
+                "知识向量重建完成："
+                f"条目 {item_count}，文档 {document_count}，已发布方案 {solution_count}，"
+                f"历史工单 {ticket_count}"
+            )
+        )