feat(graph-api): Add schema review notes for upcoming Graph API changes

feat(sbomservice): Add placeholder for SHA256SUMS in LNM v1 fixtures

docs(devportal): Create README for SDK archives in public directory

build(devportal): Implement offline bundle build script

test(devportal): Add link checker script for validating links in documentation

test(devportal): Create performance check script for dist folder size

test(devportal): Implement accessibility check script using Playwright and Axe

docs(devportal): Add SDK quickstart guide with examples for Node.js, Python, and cURL

feat(excititor): Implement MongoDB storage for airgap import records

test(findings): Add unit tests for export filters hash determinism

feat(findings): Define attestation contracts for ledger web service

feat(graph): Add MongoDB options and service collection extensions for graph indexing

test(graph): Implement integration tests for MongoDB provider and service collection extensions

feat(zastava): Define configuration options for Zastava surface secrets

build(tests): Create script to run Concelier linkset tests with TRX output

docs/implplan/SPRINT_0512_0001_0001_bench.md

@@ -58,13 +58,16 @@
 | ACT-0512-03 | PENDING | Scheduler Team | 2025-11-26 | Finalize impact index dataset selection and share deterministic replay bundle. |
 | ACT-0512-04 | PENDING | Bench Guild | 2025-11-24 | Prepare interim synthetic 50k/100k graph fixture (documented in `samples/graph/fixtures-plan.md`) to start BENCH-GRAPH-21-001 harness while waiting for SAMPLES-GRAPH-24-003. |
 | ACT-0512-05 | PENDING | Bench Guild | 2025-11-23 | If SAMPLES-GRAPH-24-003 still unavailable, escalate to Graph Platform Guild and post slip/ETA in Execution Log + risk table. |
+| ACT-0512-06 | PENDING | Signals Guild | 2025-11-24 | If reachability schema hash slips past 2025-11-24, publish synthetic schema + sample batches in `docs/benchmarks/signals/bench-sig-26-001-prep.md` to unblock BENCH-SIG-26-001/002 harness scaffolding. |
+| ACT-0512-07 | PENDING | Bench Guild · UI Guild | 2025-11-25 | Draft Playwright bench harness skeleton (headless, deterministic seeds, no network) reusing `bench-graph-21-002-prep` scenarios; commit once fixture source (real or synthetic) is bound. |
 
 ## Decisions & Risks
 | Risk | Impact | Mitigation | Status | Owner | Due (UTC) |
 | --- | --- | --- | --- | --- | --- |
 | Graph fixtures SAMPLES-GRAPH-24-003 not delivered | Blocks BENCH-GRAPH-21-001/002/24-002; benches unstartable | Track via ACT-0512-01; ACT-0512-05 escalation if missed | At risk | Bench Guild | 2025-11-22 |
-| Reachability schema hash pending from Sprint 0400/0401 | BENCH-SIG-26-001/002 remain blocked | ACT-0512-02 to deliver schema hash + fixtures; add fallback synthetic set | Open | Signals Guild | 2025-11-24 |
+| Reachability schema hash pending from Sprint 0400/0401 | BENCH-SIG-26-001/002 remain blocked | ACT-0512-02 to deliver hash; ACT-0512-06 fallback synthetic set if delayed | Open | Signals Guild | 2025-11-24 |
 | Impact index dataset undecided | BENCH-IMPACT-16-001 stalled; no reproducibility | ACT-0512-03 to finalize dataset; require deterministic replay bundle | Open | Scheduler Team | 2025-11-26 |
+| UI harness blocked waiting for fixture binding | BENCH-GRAPH-21-002/24-002 cannot start scripting | ACT-0512-07 to draft harness skeleton with deterministic seeds; binds once fixture path set | Open | Bench Guild · UI Guild | 2025-11-25 |
 
 - Graph fixture still blocked per `docs/implplan/SPRINT_0509_0001_0001_samples.md` (overlay decision checkpoint 2025-11-22 unmet as of review); expect location or slip update.
 - Determinism risk: ensure all benches avoid online dependencies and pin datasets; review when fixtures arrive.
@@ -72,8 +75,10 @@
 ## Execution Log
 | Date (UTC) | Update | Owner |
 | --- | --- | --- |
+| 2025-11-22 | Added ACT-0512-07 and corresponding risk entry to have UI bench harness skeleton ready once fixtures bind; no status changes. | Project Mgmt |
 | 2025-11-22 | Added ACT-0512-04 to build interim synthetic graph fixture so BENCH-GRAPH-21-001 can start while awaiting SAMPLES-GRAPH-24-003; no status changes. | Project Mgmt |
 | 2025-11-22 | Added ACT-0512-05 escalation path (due 2025-11-23) if SAMPLES-GRAPH-24-003 remains unavailable; updated Upcoming Checkpoints accordingly. | Project Mgmt |
+| 2025-11-22 | Added ACT-0512-06 fallback synthetic reachability schema/fixtures (due 2025-11-24) in case hash delivery slips; no status changes. | Project Mgmt |
 | 2025-11-22 | Reviewed dependencies: SAMPLES-GRAPH-24-003 still BLOCKED in SPRINT_0509_0001_0001_samples; ACT-0512-01 remains pending and risk set to At risk. | Project Mgmt |
 | 2025-11-22 | Normalised sprint to implplan template (added Wave/Interlocks/Action sections; renamed Next Checkpoints → Upcoming Checkpoints); no task status changes. | Project Mgmt |
 | 2025-11-20 | Completed PREP-BENCH-GRAPH-21-002: published UI bench prep doc at `docs/benchmarks/graph/bench-graph-21-002-prep.md`; status set to DONE. | Implementer |