refactor(db): migrate Identity schema

Complete schema ownership by moving all ASP.NET Identity tables to an additive provider-aware migration. Preserve credentials, security state, preferences, roles, claims, external logins, tokens, indexes, and cascades.

docs/audits/audit-remediation-backlog.md

@@ -558,7 +558,7 @@ SEC-008 implements the same durable state machine with `<final>.uploading` and `
 
 ### P3-1 — Reduce dual schema ownership incrementally
 
-**Status (2026-08-30): in progress.** All 49 model tables now have an executable, disjoint creation-owner classification. Twenty-eight formerly reconciler-created tables—including authentication support, email-provider connections, CV persistence/history, job-workspace AI notes, append-only AI interactions, workflow checklists, cover-letter history, durable interview preparation, and the complete Career Profile aggregate—have moved through additive provider-aware migrations with legacy-row preservation, downgrade/retry safety, startup-DDL removal, fresh SQLite runtime proof and generated MariaDB SQL. The Gmail decision migration also closes its missing MariaDB creation path. Only the seven ASP.NET Identity tables remain startup-created; see `docs/verification/jt-019-schema-ownership.md` and V-194–V-207.
+**Status (2026-08-30): complete.** All 49 model tables have an executable, disjoint creation-owner classification and are migration-owned. All 35 formerly startup-created tables—including authentication/Identity, email-provider connections, CV persistence/history, job-workspace AI notes, workflow documents, durable interview preparation, and the complete Career Profile aggregate—moved through additive provider-aware migrations with legacy-row preservation, downgrade/retry safety, startup-DDL removal, fresh SQLite chain proof, and generated MariaDB SQL. The reconciler now performs guarded compatibility repair only. See `docs/verification/jt-019-schema-ownership.md` and V-194–V-208.
 
 - **Findings/scope:** JT-019; inventory reconciler operations and move stable schema ownership to EF migrations in small steps.
 - **Dependencies:** provider upgrade fixtures and P2-2 restore safety.

docs/audits/verification-log.md

@@ -239,3 +239,4 @@ Output was reduced to filenames and commit counts. The token artifact appears un
 | V-205 | Ownership/migration chain; populated adoption/downgrade/retry; document/FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move append-only cover-letter revision history to migration ownership without losing recoverable documents | PASS — focused ownership/migration 17/17; manual and AI revisions plus source/action metadata survive adoption, downgrade and re-upgrade; owner/job/version index exists; deleting the parent application cascades through history; generated MariaDB SQL is provider-safe; startup no longer creates the table; full backend 733/733 | MariaDB SQL generated only; no provider account or production migration. Guarded malformed-empty/index/auto-increment repair remains temporarily. Sixteen reconciler-owned tables remain | JT-019 cover-letter history transfer complete; interview-preparation items and career-profile aggregate continue incrementally |
 | V-206 | Ownership/migration chain; populated adoption/downgrade/retry; practice-state/FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move durable interview-preparation items to migration ownership without losing user or AI preparation content | PASS — focused ownership/migration 18/18; user-authored and AI-generated questions, answers, prepared state and source metadata survive adoption, downgrade and re-upgrade; owner/job/sort index exists; deleting the parent application cascades through preparation items; generated MariaDB SQL is provider-safe; startup no longer creates the table; full backend 734/734 | MariaDB SQL generated only; no provider account or production migration. Guarded malformed-empty/index/auto-increment repair remains temporarily. Fifteen reconciler-owned tables remain | JT-019 feature-table transfers complete; the Career Profile aggregate and Identity group remain dependency-aware batches |
 | V-207 | Ownership/migration chain; populated aggregate adoption/downgrade/retry; JSON/text/FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move the canonical Career Profile, append-only history, and six relational child types to migration ownership without losing career data | PASS — focused ownership/migration 19/19; canonical and long-tail JSON, Norwegian text, version history, experience, education, skill, project, certification and language rows survive adoption, downgrade and re-upgrade; all 14 aggregate indexes exist; deleting the profile cascades through history and children; generated MariaDB SQL uses bounded indexed keys and provider-safe types; startup creates none of the eight tables; full backend 735/735 | MariaDB SQL generated only; no production migration. Guarded historical LongTailJson/index/auto-increment repairs remain temporarily. Seven reconciler-owned Identity tables remain | JT-019 feature and career transfers complete; isolate the Identity ownership boundary next |
+| V-208 | Ownership/migration chain; populated Identity adoption/downgrade/retry; credential/preference/FK/index assertions; MariaDB script; full backend; fresh application startup | Repository root / disposable local SQLite | Complete JT-019 by moving the seven ASP.NET Identity tables to migration ownership without invalidating authentication data | PASS — focused ownership/migration 20/20; password hash, Bokmål preference, 2FA state, role assignment, role/user claims, external login and token survive adoption, downgrade and re-upgrade; all eight Identity indexes exist; user and role deletion cascades remain effective; generated MariaDB SQL is provider-safe; startup creates no model tables; full backend 736/736; a fresh application applies the complete chain, reaches Identity role initialization and listens normally | MariaDB SQL generated only; no production migration. The historical AspNetUsers compatibility bootstrap and guarded column/index repairs remain for chain traversal and legacy upgrades. Launch settings supplied an existing policy-invalid development admin password, producing a non-fatal seed warning | JT-019 complete; future work may retire individual repair statements only after provider-backed historical fixtures prove them redundant |

docs/infrastructure/database-ownership.md

@@ -65,7 +65,8 @@ already-correct database. Two consequences worth knowing:
 Created by EF migrations, never by the reconciler:
 
 `AccountDeletionFiles`, `AccountDeletionRequests`, `AiInteractions`, `AiUsageRecords`, `AiWorkspaceNotes`,
-`ApplicationChecklistItems`, `Attachments`, `CareerCertifications`, `CareerEducations`,
+`ApplicationChecklistItems`, `AspNetRoleClaims`, `AspNetRoles`, `AspNetUserClaims`, `AspNetUserLogins`,
+`AspNetUserRoles`, `AspNetUsers`, `AspNetUserTokens`, `Attachments`, `CareerCertifications`, `CareerEducations`,
 `CareerExperiences`, `CareerLanguages`, `CareerProfiles`, `CareerProfileVersions`, `CareerProjects`,
 `CareerSkills`, `Companies`, `CoverLetterVersions`,
 `Correspondences`, `CvExtractionRuns`, `CvUploadArtifacts`, `CvVariants`, `CvVariantVersions`,
@@ -132,6 +133,11 @@ child tables) moved in `20260830133000_AdoptCareerProfileSchema`. Canonical/long
 append-only history, stable child keys and ordering are retained; bounded MariaDB owner/item keys
 keep all aggregate indexes provider-safe.
 
+The ASP.NET Identity aggregate moved in `20260830134000_AdoptIdentitySchema`. Accounts, password
+hashes, security/2FA state, UI preferences, roles, claims, external logins, tokens, indexes, and
+cascades are retained. The earlier guarded `AspNetUsers` bootstrap remains only so historical
+standalone migration traversal can reach later additive user-column migrations.
+
 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
@@ -139,12 +145,8 @@ It used to create `RuleSettings`, which is precisely why a clean install failed
 
 ### Reconciler-owned
 
-The seven ASP.NET Identity tables are currently reconciler-owned, despite older wording that
-called them migration-owned: `AspNetRoles`, `AspNetUsers`, `AspNetRoleClaims`, `AspNetUserClaims`,
-`AspNetUserLogins`, `AspNetUserRoles`, and `AspNetUserTokens`. Guarded migration bootstraps for
-`AspNetUsers` supports standalone traversal but does not yet transfer ownership. The historical
-`AiInteractions` bootstrap remains in the migration chain, but its current owner is the later
-provider-aware adoption migration.
+None. The reconciler contains guarded historical repair logic, but it no longer creates EF model
+tables. Compatibility bootstraps inside old migrations are chain prerequisites, not current owners.
 
 `StartupSchemaOwnership` is the executable inventory. Its tests require every EF model table to
 have exactly one creation owner and keep compatibility bootstraps out of the migration-owned set.
@@ -222,9 +224,8 @@ everything inside it.
 
 Standalone EF tooling is also supported for a blank SQLite database. The historical initial
 migration now supplies the stable JobApplication columns required by later SQLite rebuilds, and
-guarded compatibility bootstraps provide the reconciler-owned source tables used by later additive
-migrations. Application startup may subsequently reconcile the remaining Identity and auxiliary
-tables without losing rows.
+guarded compatibility bootstraps provide source tables used by later additive migrations.
+Application startup may subsequently apply guarded historical column/index repairs without losing rows.
 
 ## Production upgrade
 

docs/verification/jt-019-schema-ownership.md

@@ -44,6 +44,8 @@ cohesive table groups. It does not attempt to delete the legacy reconciler whole
 - Added `20260830133000_AdoptCareerProfileSchema` for the canonical profile, append-only history,
   and all six ordered relational child types. Legacy JSON, Norwegian text, stable keys, and cascade
   ownership are retained.
+- Added `20260830134000_AdoptIdentitySchema` for the complete ASP.NET Identity aggregate, preserving
+  accounts, password hashes, 2FA state, preferences, roles, claims, external logins, and tokens.
 - Corrected the ownership runbook: new tables now default to migrations; the reconciler is legacy
   compatibility code to retire one dependency group at a time.
 
@@ -87,14 +89,21 @@ migration.
 - A populated Career Profile with history, long-tail JSON, Norwegian text, experience, education,
   skills, projects, certifications, and languages survives adoption, downgrade, and re-upgrade; all
   14 aggregate indexes and parent cascades remain effective.
+- A populated Identity account with password hash, Bokmål preference, 2FA state, role assignment,
+  role/user claims, external login, and token survives adoption, downgrade, and re-upgrade; all eight
+  Identity indexes and user/role cascades remain effective.
 - Generated MariaDB SQL contains the provider-correct `SystemEmailSettings` DDL.
-- Full backend: 735/735 passed after the Career Profile aggregate transfer.
+- Full backend: 736/736 passed after the Identity aggregate transfer.
+- Fresh application startup over a new disposable SQLite data root applied the complete chain,
+  queried/seeded Identity roles, and reached the healthy listening state with no schema failure.
 - Fresh application startup over a new disposable SQLite database applied
   `20260830120000_AdoptSystemEmailSettingsSchema` and reached the healthy listening state.
 
 ## Remaining JT-019 work
 
-Seven model tables remain startup-created: the ASP.NET Identity group.
+No EF model tables remain startup-created. JT-019's creation-ownership transfer is complete; the
+startup reconciler now performs compatibility repair only and can be reduced further when historical
+provider fixtures prove individual repairs obsolete.
 with parent dependencies. Transfer them in small dependency-aware migrations with blank, populated,
 retry and MariaDB runtime proof. Column/index repairs must remain until historical upgrade fixtures
 prove each one redundant.

docs/work-programmes/master-progress.md

@@ -57,6 +57,7 @@ Updated: 2026-08-30
 - Moved append-only cover-letter revision history into a provider-aware migration; manual and AI text, source/action metadata, ordering, and application cascades are preserved.
 - Moved durable interview-preparation items into a provider-aware migration; user and AI content, answers, practice state, sources, ordering, and application cascades are preserved.
 - Moved the complete Career Profile aggregate into a provider-aware migration; canonical and long-tail JSON, version history, all six relational child types, stable ordering, indexes, and cascades are preserved.
+- Completed JT-019 by moving all seven ASP.NET Identity tables into provider-aware migration ownership; accounts, credentials, 2FA state, preferences, roles, claims, external logins, tokens, indexes, and cascades are preserved. Startup schema code is now repair-only.
 
 ### In progress
 
@@ -87,7 +88,7 @@ Updated: 2026-08-30
 - Focused frontend: 2 suites, 6 tests passed.
 - Full frontend: 64 suites, 272 tests passed.
 - Next production build and TypeScript: passed.
-- Full backend: 735/735 tests passed after the Career Profile aggregate JT-019 transfer.
+- Full backend: 736/736 tests passed after completing the Identity/JT-019 ownership transfer.
 - Portable Playwright launcher: resolved the user-local .NET 9 SDK; backend Release build passed with 0 warnings/errors.
 - Playwright: initial full run 9/10 exposed the intentional mobile Settings control change; updated focused rerun passed 1/1. A final complete browser rerun remains in the end-of-batch gate.
 - Focused backend match/intelligence verification: 34/34 passed.