feat(14-02): add migration 0007 and ORM models for cloud analysis cache schema
- 0007_cloud_analysis_cache.py: new Alembic migration adding 4 Phase 14 tables
- cloud_byte_cache_entries: durable MinIO cache with version_key uniqueness,
pin_count/active_job_count guards, LRU eviction indexes
- cloud_analysis_jobs: batch job rows (scope_kind, status, aggregate counters,
provider_bytes_estimate, failure_behavior)
- cloud_analysis_job_items: per-item idempotency rows (status vocabulary,
controlled error fields, cache_entry_id, retry_count, version_key fingerprint)
- user_analysis_settings: per-user preferences (progress_detail, failure_behavior,
cloud_cache_limit_bytes)
- Reversible downgrade drops Phase 14 objects only
- db/models.py: CloudByteCacheEntry, CloudAnalysisJob, CloudAnalysisJobItem,
UserAnalysisSettings ORM models mirroring migration
curo1305
fd76d06b3a