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refactor(db): migrate cover letter history

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Move append-only cover letter revisions into an additive provider-aware migration. Preserve manual and AI text, source metadata, ordering, and application cascade semantics.
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cesnimda
2026-08-30 18:55:20 +02:00
parent e933409698
commit 934b35a1e0
10 changed files with 137 additions and 47 deletions
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docs/infrastructure/database-ownership.md
+7 -3
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@@ -67,7 +67,7 @@ already-correct database. Two consequences worth knowing:
Created by EF migrations, never by the reconciler:
`AccountDeletionFiles`, `AccountDeletionRequests`, `AiInteractions`, `AiUsageRecords`, `AiWorkspaceNotes`,
`ApplicationChecklistItems`, `Attachments`, `Companies`,
`ApplicationChecklistItems`, `Attachments`, `Companies`, `CoverLetterVersions`,
`Correspondences`, `CvExtractionRuns`, `CvUploadArtifacts`, `CvVariants`, `CvVariantVersions`,
`EmailDrafts`, `EmailSendAttempts`, `GmailConnections`,
`GmailReviewDecisions`, `ImapConnections`, `InterviewPrepNotes`, `JobApplications`, `JobEvents`, `Jobs`,
@@ -119,6 +119,10 @@ creates the table; only additive counter and guarded MariaDB shape/index repairs
system-key uniqueness and owner/job/sort index preserve idempotent seeding alongside freely ordered
manual tasks; application deletion remains cascading.
`CoverLetterVersions` moved in `20260830131000_AdoptCoverLetterVersionSchema`. Manual and AI-approved
revisions retain their source/action metadata and owner/job/version ordering; application deletion
remains cascading.
The reconciler may **repair** these (add a missing column, add an index, fix a non-`AUTO_INCREMENT`
primary key) and may seed the default `RuleSettings` row — but it must never `CREATE TABLE` them.
It used to create `RuleSettings`, which is precisely why a clean install failed with
@@ -130,7 +134,7 @@ Created by `StartupInitializationExtensions`, with a **no-op migration** holding
`CareerProfiles`, `CareerProfileVersions`, the six CareerProfile children (`CareerExperiences`,
`CareerEducations`, `CareerSkills`, `CareerProjects`, `CareerCertifications`, `CareerLanguages`),
`CoverLetterVersions` and `InterviewPrepItems`.
`InterviewPrepItems`.
The seven ASP.NET Identity tables are also currently reconciler-owned, despite older wording that
called them migration-owned: `AspNetRoles`, `AspNetUsers`, `AspNetRoleClaims`, `AspNetUserClaims`,
@@ -151,7 +155,7 @@ No-op migrations, each with a comment explaining why:
| `20260718131138_AddAiInteractions` | historical no-op; ownership transferred by `20260830129000_AdoptAiInteractionSchema` |
| `20260719085904_AddApplicationChecklistItems` | historical no-op; ownership transferred by `20260830130000_AdoptApplicationChecklistSchema` |
| `20260719094728_SyncCareerChildKeyLengths` | snapshot sync only |
| `20260719120954_AddCoverLetterVersions` | `CoverLetterVersions` |
| `20260719120954_AddCoverLetterVersions` | historical no-op; ownership transferred by `20260830131000_AdoptCoverLetterVersionSchema` |
| `20260719145044_AddInterviewPrepItems` | `InterviewPrepItems` |
### Dependency guards