diff --git a/TECH_DEBT_REGISTER.md b/TECH_DEBT_REGISTER.md
index 86e86155..fecbbaad 100644
--- a/TECH_DEBT_REGISTER.md
+++ b/TECH_DEBT_REGISTER.md
@@ -54,7 +54,7 @@
 | DEBT-019 | Multiple duplicate cross-cutting abstractions (`IClock`, `IOutboxWriter`, `IKrxDataService`) | Medium (2) | Low (1) | Completed (partial) | Found and collapsed 3 separate cases where a slice reinvented an abstraction that already existed in `KArtSell.BuildingBlocks`: a second `IKrxDataService` (deleted, `ShadowRun.Services`), a second `IOutboxWriter`/`WriteAsync<T>` in `ReconcileTradeHandler.cs` (removed, switched to `BuildingBlocks.Reliability.IOutboxWriter`), and a second `IClock`/`SystemClock` in `ApprovalWorkflow/ApprovalPolicy.cs` (removed, switched to `BuildingBlocks.Time.IClock`). Root cause: successive sessions implementing a slice without searching `BuildingBlocks` first. Recommend a pre-implementation checklist step ("does this abstraction already exist in BuildingBlocks?") for future slices. | @claude | Session 2026-08-07 (Phase 3 J/K/L hardening) |
 | DEBT-020 | `model_operations.models` and `compliance` schema never created by any migration | High (3) | Low (1) | Completed | `0036`/`0038` reference `model_operations.models(id)` via FK and `OpenDartDailyBatchJob.cs` queries it directly, but no migration ever ran `CREATE TABLE model_operations.models`; `0037` wrote to `compliance.*` tables without `CREATE SCHEMA compliance`. Any fresh database — including the actual deploy target (178.104.200.7), confirmed via a live failed SCP/DbMigrator deploy on 2026-08-07 — failed at migration `0036`/`0037`. Fixed via new `0035_model_operations_models.sql` (minimal: id/ticker/published_at/correlation_id/revision only — full Model Card schema is separate future work) and `CREATE SCHEMA IF NOT EXISTS compliance;` added to `0037`. Full chain 0000→0040 now verified fresh-install + idempotent re-run clean. | @claude | Session 2026-08-07 (deploy failure triage) |
 | DEBT-021 | Dapper never configured for snake_case↔PascalCase column mapping | High (3) | Low (1) | Completed | `Dapper.DefaultTypeMap.MatchNamesWithUnderscores` was never set anywhere in the codebase, so every `QueryAsync<T>`/`QuerySingleOrDefaultAsync<T>` result-mapping onto a snake_case DB column (e.g. `event_type` → `EventType`) silently returned null/default for that property instead of throwing — masking the bug in every Sql class across every module. Confirmed via `ApprovalWorkflowTests.InsertAndRetrieveProposal_RoundTrips` and `AuditTrailTests.InsertAuditEvent_CreatesImmutableRecord` both getting real rows back with null fields. Fixed centrally via a `[ModuleInitializer]` in `KArtSell.BuildingBlocks/Data/DapperBootstrap.cs` (runs once per process regardless of entry point — Host/DbMigrator/tests). | @claude | Session 2026-08-07 (deploy failure triage) |
-| DEBT-022 | jsonb/inet columns written as plain text without an explicit cast | Medium (2) | Low (1) | Completed (partial) | Dapper does not know to cast a `string` parameter to `jsonb`/`inet` for Npgsql; `AuditSql.InsertAuditEventAsync` (`details`, `ip_address`), `AuditSql.RedactAuditEventDetailsAsync` (duplicate `SET details =` assignment, separately fixed), `TradeSql.InsertTradeAsync`/`UpdateTradeStatusAsync` (`kis_response`), and `SellDecisionSql.InsertDecisionAsync` (`oos_performance`) all failed with `42804: column "x" is of type jsonb but expression is of type text` the first time they were run against a real schema. Fixed with explicit `::jsonb`/`::inet` casts at each call site (mechanical, no behavior change). `AuditSql`'s jsonb read-back (`Dictionary<string,object>` from a jsonb column) also needed a raw-DTO + `JsonSerializer.Deserialize` mapping since Dapper has no built-in jsonb→Dictionary conversion either. **Not yet checked**: `PortfolioReconciliation`/`ApprovalWorkflow` Sql classes for the same pattern beyond what surfaced in this session's test runs — a full audit of jsonb/inet columns across all Sql classes is still open. | @claude | Session 2026-08-07 (deploy failure triage) |
+| DEBT-022 | jsonb/inet columns written as plain text without an explicit cast | Medium (2) | Low (1) | Completed | Dapper does not know to cast a `string` parameter to `jsonb`/`inet` for Npgsql; `AuditSql.InsertAuditEventAsync` (`details`, `ip_address`), `AuditSql.RedactAuditEventDetailsAsync` (duplicate `SET details =` assignment, separately fixed), `TradeSql.InsertTradeAsync`/`UpdateTradeStatusAsync` (`kis_response`), and `SellDecisionSql.InsertDecisionAsync` (`oos_performance`) all failed with `42804: column "x" is of type jsonb but expression is of type text` the first time they were run against a real schema. Fixed with explicit `::jsonb`/`::inet` casts at each call site (mechanical, no behavior change). `AuditSql`'s jsonb read-back (`Dictionary<string,object>` from a jsonb column) also needed a raw-DTO + `JsonSerializer.Deserialize` mapping since Dapper has no built-in jsonb→Dictionary conversion either. **2026-08-09: full audit completed** (repo-wide, not just Portfolio/Approval). Enumerated every `jsonb`/`inet` column across `db/migrations/*.sql` (case-insensitive — several use `JSONB`/`INET` uppercase, which an earlier lowercase-only grep would have missed), then checked each one for a C# writer. Findings: `PortfolioReconciliation`'s tables (`portfolio_management.holdings`/`reconciliation_logs`) have no `jsonb`/`inet` columns at all — nothing to fix. `ApprovalWorkflow`'s one `jsonb` column (`approval_events.details`) was already cast correctly in `InsertEventAsync`. Several other `jsonb` columns (`evidence_snapshot.payload`, execution-assurance/model-feedback tables under `evaluation`/`governance`) have no C# writer yet at all — those slices (VS-05/09/19 etc.) are unimplemented, so there's no bug surface yet; flag for re-check whenever they get built. **One new, real instance of this exact bug found and fixed**: `OpenDartService.CacheResultAsync` (`src/KArtSell.Host/Observability/OpenDartService.cs`) inserted a serialized JSON string into `opendata.opendart_cache.data_json JSONB` without a cast — same `42804` failure mode as the others, just never previously exercised/caught. Fixed with `@dataJson::jsonb`. `dotnet build -c Release` clean; not run against a live database this session (see the rest of this session's entries for why). | @claude | Session 2026-08-07 (deploy failure triage, discovery), Session 2026-08-09 (full audit + OpenDartService fix) |
 | DEBT-023 | `ApprovalSql.InsertProposalAsync` fails on `DateOnly` parameter | Medium (2) | Low (1) | Completed | Stale entry, corrected 2026-08-08: this described `ApprovalSql.cs` under `src/KArtSell.Modules.ModelOperations/ApprovalWorkflow/` — that per-call-site fix (`::date` cast + `"yyyy-MM-dd"` string parameter, not a centralized type handler) landed in commit `2ccf74c` but this row was never updated to reflect it. That whole file was then deleted as dead code while resolving DEBT-017 (2026-08-08); its surviving sibling, `Features/ApprovalWorkflow/Sql.cs`, was found to have the *same* unfixed bug independently and received the identical fix in that session — see DEBT-017. No centralized `DateOnly` type handler was added; this remains a per-call-site fix pattern, so any *other* `DateOnly`-typed Dapper INSERT elsewhere in the codebase should still be checked individually rather than assumed safe. | @claude | commit 2ccf74c; DEBT-017 (this session) |
 | DEBT-024 | New integration tests don't insert FK parent rows / one pure-logic test flakes under full-suite run | Low (1) | Low (1) | Backlog | `TradeExecutionTests` constructs `Trade` with a random `sellDecisionId` that was never inserted into `sell_decisions`, so every insert now correctly fails its FK constraint (`trades_sell_decision_id_fkey`) once the schema was actually complete (see DEBT-020) — test-only gap, not a production code defect; needs the tests updated to insert a parent `models`+`sell_decisions` row first. Separately, `SellPriorityRankerTests.CalculateScore_HardImpairment_ReturnsLowestScore` (pure logic, no DB) passed in isolation but returned 1000 instead of the expected 950 (age-boost not applied) when run as part of the full suite — not yet root-caused; may be test-order/parallelization state leakage rather than a `SellPriorityRanker` bug. Also, `DbUpMigrationTests.*` (pre-existing, unrelated to this session) fail locally with `42501: must be owner of database kartsell_migration_test` — a local Postgres role permission gap, not a code issue. | @claude | Session 2026-08-07 (deploy failure triage) |
 | DEBT-025 | `Features/ApprovalWorkflow` has no `GET /approvals/{id}` endpoint | Medium (2) | Low (1) | Completed (DB verification pending) | Added `GetApprovalByIdEndpoint` (`GET /approvals/{id}`) + `ApprovalDetailResponse` (includes `Evidence`), and `ApprovalWorkflowSql.GetEvidenceForProposalAsync`. Evidence attached during approval (PBO/DSR/OOS artifact links) is now readable via HTTP. Two new tests added (`GetEvidenceForProposalAsync_ReturnsEvidenceAttachedDuringApproval` + the endpoint itself). `dotnet build -c Release` clean (0/0). **Not verified against a live database** — same 127.0.0.1:5432 connection-refused blocker as DEBT-017/026; do not mark fully verified until a real Postgres run passes. | @claude | DEBT-017 (2026-08-08), `src/KArtSell.Modules.ModelOperations/Features/ApprovalWorkflow/README.md` |
diff --git a/src/KArtSell.Host/Observability/OpenDartService.cs b/src/KArtSell.Host/Observability/OpenDartService.cs
index 7d917cf7..fa76069c 100644
--- a/src/KArtSell.Host/Observability/OpenDartService.cs
+++ b/src/KArtSell.Host/Observability/OpenDartService.cs
@@ -153,7 +153,7 @@ public class OpenDartService
     {
         const string sql = """
             INSERT INTO opendata.opendart_cache (ticker, quarter, data_json, expires_at, published_at)
-            VALUES (@ticker, @quarter, @dataJson, @expiresAt, @publishedAt)
+            VALUES (@ticker, @quarter, @dataJson::jsonb, @expiresAt, @publishedAt)
             ON CONFLICT (ticker, quarter) DO UPDATE SET
                 data_json = EXCLUDED.data_json,
                 expires_at = EXCLUDED.expires_at,