fix: reload full records when updating uri mapping

[zhoujh01]

Description

Related Issue

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement
• Test update

Changes Made

-update_uri_mapping 不再直接拿查询出来的精简记录做 URI 重写，而是先收集记录 id，再通过
self.get(...) 拉取完整记录后再 upsert。另外补了两层保护：
如果没查到有效 id，直接告警并返回；
如果完整记录里缺少 dense vector，就跳过该条并打 warning。
它解决的问题是：URI 改名时，原先用的是字段不全的记录，可能缺少向量等关键数据，导致新记录写入失败、写入残
缺数据，或者 URI 映射迁移不完整。现在改成先补全原记录再写，能保证 URI 映射更新基于完整数据执行，并且在关
键字段缺失时显式失败或跳过，不再静默出错。

Testing

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have tested this on the following platforms:
  • Linux
  • macOS
  • Windows

Checklist

• My code follows the project's coding style
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published

Screenshots (if applicable)

Additional Notes

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PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Check for missing fetched records Verify that all requested record IDs were successfully retrieved from storage. If any IDs are missing, log a warning with the missing IDs to avoid silent partial updates that could leave data in an inconsistent state. openviking/storage/viking_vector_index_backend.py [980-989] full_records = await self.get(record_ids, ctx=ctx) if not full_records: logger.warning( "update_uri_mapping failed to fetch full records: uri=%s new_uri=%s account_id=%s ids=%s", canonical_uri, canonical_new_uri, ctx.account_id, record_ids, ) return False +fetched_ids = {str(rec["id"]) for rec in full_records if rec.get("id")} +missing_ids = set(record_ids) - fetched_ids +if missing_ids: + logger.warning( + "update_uri_mapping missing some full records: uri=%s new_uri=%s account_id=%s missing_ids=%s", + canonical_uri, + canonical_new_uri, + ctx.account_id, + missing_ids, + ) Suggestion importance[1-10]: 7 __ Why: Adds a check for missing fetched record IDs, preventing silent partial updates and improving data consistency.	Medium