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Implement hosted Target Ledger append API (WP-0006-T04)

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migrations/0002_ledger.sql adds ledger_entries with an identity-column
sequence for exact append order and no UPDATE/DELETE grant for trf_app.
src/target_revenue/ledger.py: append_entry() rejects caller-supplied
previous_entry_hash/signature, enforces per-Licensor phase ownership,
serializes concurrent appends via pg_advisory_xact_lock, computes the
chain tip and signs with the Trust Service instance's own Ed25519 key
(service/keys.py), reusing validation.py's checks unchanged. Adds
POST/GET /phases/{id}/ledger and an unauthenticated GET /public-key.

Also fixes a route-ordering bug found while wiring this in: phase IDs
never needed the {phase_id:path} converter (they contain colons, not
slashes), and its greedy matching was swallowing /ledger-suffixed
paths into the plain GET /phases/{id} route.

tests/test_ledger_hosting.py (8 Docker-gated tests) exercises hash-chain
linkage, forged-field rejection, cross-Licensor isolation, currency and
duplicate-id rejection, DB-privilege enforcement, signature
verification via the public-key endpoint, and the task's own
highest-priority property: append -> export -> offline fold reproduces
the exact expected Development/Remission Credit and Outstanding Target.
This commit is contained in:
tegwick 2026-07-29 21:34:27 +02:00
parent a419178c08
commit 5064815e77
7 changed files with 567 additions and 12 deletions
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@ -78,7 +78,7 @@ The concept's §13 now defines a **Global Contingency Share Determination Rule**
| [TREV-WP-0003](workplans/TREV-WP-0003-normative-core-extraction.md) | Extract stable normative core docs — **finished**, reviewed and accepted 2026-07-29 |
| [TREV-WP-0004](workplans/TREV-WP-0004-global-jurisdiction-research.md) | Global jurisdictional research backing the License/CUA candidates — **finished**, T10 synthesis accepted 2026-07-29 with alpha/beta working defaults (full legal review deferred until out of beta — see `SCOPE.md` §1) |
| [TREV-WP-0005](workplans/TREV-WP-0005-enforcement-network-research.md) | Enforcement Network legal feasibility research — **finished**, T10 synthesis accepted 2026-07-29 on the same alpha/beta basis (Japan's Article 12 risk remains explicitly unresolved) |
| [TREV-WP-0006](workplans/TREV-WP-0006-trust-service-implementation.md) | Hosted Trust Service reference implementation (PRD Phase 4b) — active; T01 (PRD), T02 (ADR-0002, accepted), T03 (Phase/Extension Registry hosting) done; T04 (Ledger append API) next |
| [TREV-WP-0006](workplans/TREV-WP-0006-trust-service-implementation.md) | Hosted Trust Service reference implementation (PRD Phase 4b) — active; T01 (PRD), T02 (ADR-0002, accepted), T03 (registries), T04 (Ledger append API) done; T05 (Metrics) next |
| [TREV-WP-0007](workplans/TREV-WP-0007-degeneration-policy-and-canonical-profiles.md) | Degeneration policy + canonical monetization profile catalog — active, not yet started |
| [TREV-WP-0008](workplans/TREV-WP-0008-governance-and-pilot-rollout.md) | Governance formalization + pilot rollout across `coulomb-loop`/`net-kingdom`/`helix-forge`/`railiance-*` — active, not yet started; real Phase declarations gated behind T05 |