feat(file-summary): 实现文件处理技能链路

review_agent/file_summary/skills/archive_extract.py

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+from __future__ import annotations
+
+from pathlib import Path
+
+from review_agent.models import FileSummaryBatchAttachment
+
+from ..paths import resolve_storage_path
+from ..services.archive import ARCHIVE_EXTENSIONS, extract_archive
+from .base import BaseSkill, SkillResult, WorkflowContext
+
+
+class ArchiveExtractSkill(BaseSkill):
+    name = "archive_extract"
+
+    def run(self, context: WorkflowContext) -> SkillResult:
+        extracted_count = 0
+        target_dir = Path(context.batch.work_dir or "")
+        if not target_dir:
+            return SkillResult(success=True, data={"extracted_count": 0})
+
+        for binding in FileSummaryBatchAttachment.objects.filter(batch=context.batch):
+            path = resolve_storage_path(binding.attachment.storage_path)
+            if path.suffix.lower().lstrip(".") not in ARCHIVE_EXTENSIONS:
+                continue
+            extracted_count += len(extract_archive(path, target_dir))
+        return SkillResult(success=True, data={"extracted_count": extracted_count})