diff --git a/docs/product-technical-gap-baseline.md b/docs/product-technical-gap-baseline.md
index ea2389e9c..fbfe5c9d5 100644
--- a/docs/product-technical-gap-baseline.md
+++ b/docs/product-technical-gap-baseline.md
@@ -1,29 +1,39 @@
 # Product & Technical Gap Baseline
 
-> Dashboard delivery snapshot: 2026-08-26 10:06 KST. Protected `main` was
-> `494b54e2245040bcf02b45376f221c37cd437e76`. Dashboard PR #640 exact
-> observed head was `d314855c`; this branch is not
-> protected-main release evidence.
+> Dashboard delivery snapshot: 2026-08-27 00:50 KST. Protected `main` was
+> `ff7431bd1851c03e737808d22c6a2d43968582f9`. Dashboard PR #640 exact
+> observed head was `fa9f0aeb5225035264ebc0579c127d1f283c0b17`; this branch is not
+> protected-main release evidence. The queue contained 23 open PRs (21
+> `BLOCKED`, one `UNSTABLE`, one `CLEAN`) and no exact-head approval. Stacked
+> repair PR #715 was based exactly on #640 and its pre-documentation head
+> `5746c57d` passed 44 focused tests; it repairs the four stale HTTP transport
+> test doubles and narrowly excludes one Python-before-3.7 Semgrep rule that
+> contradicts the repository's Python >=3.12 contract.
 
 ## Operations Dashboard PRD/TRD traceability
 
 ADR 0224 reconciles the observed `lw*` test projects with the complete
-`lineageweave` Compose boundary. The Dashboard candidate stack exercised all
-eight declared services with 27 synthetic posts: live OIDC/JWKS verification
-passed, the latest topic-coordinate migration tables were present, Ask reached
-`succeeded`, and a 2-VU 20-second authenticated k6 observation completed 162
-HTTP requests with zero failures. This is local candidate evidence, not a
-protected-main release claim. Historical test projects are retired only by
-their exact Compose project label and without named-volume deletion. PR #678
-implementation head `da98de07` fixes the default project name; its follow-up
-exact-label audit also removed the remaining identifiable isolated test
-containers while preserving named volumes.
+`lineageweave` Compose boundary. A historical Dashboard candidate exercised
+all eight declared services with 27 synthetic posts: live OIDC/JWKS
+verification passed, the latest topic-coordinate migration tables were
+present, Ask reached `succeeded`, and a 2-VU 20-second authenticated k6
+observation completed 162 HTTP requests with zero failures. That run predates
+the current #640 head. The canonical containers currently return HTTP 200 from
+backend `/healthz` and the frontend root, but their Compose labels do not prove
+the source commit; therefore neither the running stack nor the historical k6
+run is exact-head authenticated acceptance. Exact-head desktop/mobile
+screenshots and k6 remain required after #715 is incorporated and #640 is
+rebuilt. Historical test projects are retired only by their exact Compose
+project label and without named-volume deletion. PR #678 implementation head
+`da98de07` fixes the default project name; its follow-up exact-label audit also
+removed the remaining identifiable isolated test containers while preserving
+named volumes.
 
 | Requirement | Evidence contract | Delivery state |
 |---|---|---|
-| Claim cause delay: order, specification change, originating order, sales pool, Event/post counts | ADR 0206; contextual-orchestrator case classification and `claim_received` → `cause_confirmed` milestones with cited spans and observed source clocks | Stacked candidate reports open/resolved/evidence-missing counts and exact elapsed time only for paired observed endpoints; every required answer and endpoint is cited or explicitly missing; authenticated synthetic runtime passed, while authorized-corpus re-analysis remains pending |
-| Rebid/handover: discussion, counterparties, our owner, decisions, Event/post counts | ADR 0206; normalized case facts plus separate rebid-response and handover milestone pairs | Stacked candidate reports open/resolved/evidence-missing rebid and handover lifecycles without a delay threshold or invented elapsed endpoint; authenticated synthetic runtime passed, while authorized-corpus re-analysis remains pending |
-| External information count/rate and sales/project relation | ADR 0206; semantic `external_information` classification inside Dashboard GNB | Candidate GNB destination filters the Dashboard to external evidence; no separate Board by product decision; authenticated synthetic runtime passed with the honest zero-result state |
+| Claim cause delay: order, specification change, originating order, sales pool, Event/post counts | ADR 0206; contextual-orchestrator case classification and `claim_received` → `cause_confirmed` milestones with cited spans and observed source clocks | Stacked candidate reports open/resolved/evidence-missing counts and exact elapsed time only for paired observed endpoints; every required answer and endpoint is cited or explicitly missing. Historical synthetic runtime passed, while current exact-head authenticated acceptance and authorized-corpus re-analysis remain pending. |
+| Rebid/handover: discussion, counterparties, our owner, decisions, Event/post counts | ADR 0206; normalized case facts plus separate rebid-response and handover milestone pairs | Stacked candidate reports open/resolved/evidence-missing rebid and handover lifecycles without a delay threshold or invented elapsed endpoint. Historical synthetic runtime passed, while current exact-head authenticated acceptance and authorized-corpus re-analysis remain pending. |
+| External information count/rate and sales/project relation | ADR 0206; semantic `external_information` classification inside Dashboard GNB | Candidate GNB destination filters the Dashboard to external evidence; no separate Board by product decision. Historical synthetic runtime returned the honest zero-result state; current exact-head authenticated acceptance remains pending. |
 | Project-specific journey | Explicit source/semantic project membership plus provenance-bearing TEPP TDT/CHRONOS predecessor, branch, and transition results | Candidate API preserves every explicit project membership, but its local event-time sort is only an observed-event list. It is no longer labeled as a Project Journey. Full journey delivery remains open until the accepted TEPP producer artifact is persisted and rendered; no fixed sales/order start or nearest-date edge is accepted. |
 | Apple-Silicon mathematical acceleration | ADR 0226 macOS-native Rust owner service with authenticated MLX Metal execution receipts | Normative boundary applies to accepted TEPP and fast-mlsirm Rust kernels; their owner implementations and actual Metal parity receipts remain required before activation. RankWeave's current dependency-free Python retrieval-fusion/evaluation contract is not Rust acceleration evidence and is not required to adopt MLX; a future Rust vector-scoring owner remains a separately accepted contract gap. |
 | Ask answer citation-to-event navigation | ADR 0225; authorized cited source, observed source clock, focused evidence layer, and full-post navigation | Stacked candidate renders numbered answer citations and chronologically ordered evidence cards with bidirectional focus. Event and record clocks stay distinct; this list does not claim a Project Journey. Storybook and component interaction evidence are included; authenticated runtime screenshots remain required at the exact candidate head. |
diff --git a/lineageweave/ontology.py b/lineageweave/ontology.py
index 3a12b7f93..551aefbf5 100644
--- a/lineageweave/ontology.py
+++ b/lineageweave/ontology.py
@@ -20,7 +20,8 @@
 
 from datetime import datetime
 from decimal import Decimal, InvalidOperation
-from importlib.resources import files
+# Python >=3.12 is required by pyproject.toml.
+from importlib.resources import files  # nosemgrep: python.lang.compatibility.python37.python37-compatibility-importlib2
 from pathlib import Path
 from urllib.parse import quote
 from uuid import UUID
diff --git a/tests/test_contextual_orchestrator_vision.py b/tests/test_contextual_orchestrator_vision.py
index 0cd81c499..78cdd29b0 100644
--- a/tests/test_contextual_orchestrator_vision.py
+++ b/tests/test_contextual_orchestrator_vision.py
@@ -15,7 +15,7 @@ def test_native_vision_client_sends_multimodal_payload_through_orchestrator(monk
         lambda image_bytes, mime_type: (image_bytes, mime_type),
     )
 
-    def fake_request(method, url, *, body, headers, timeout):
+    def fake_request(method, url, *, body, headers, timeout, response_control_headers):
         captured["url"] = url
         captured["payload"] = json.loads(body)
         response = {
@@ -51,7 +51,7 @@ def test_native_vision_region_locator_uses_orchestrator_auto_contract(monkeypatc
         lambda image_bytes, mime_type: (image_bytes, mime_type),
     )
 
-    def fake_request(method, url, *, body, headers, timeout):
+    def fake_request(method, url, *, body, headers, timeout, response_control_headers):
         captured["url"] = url
         captured["payload"] = json.loads(body)
         return 200, json.dumps({
@@ -78,7 +78,7 @@ def test_native_vision_region_locator_accepts_single_region_object(monkeypatch)
         lambda image_bytes, mime_type: (image_bytes, mime_type),
     )
 
-    def fake_request(method, url, *, body, headers, timeout):
+    def fake_request(method, url, *, body, headers, timeout, response_control_headers):
         return 200, json.dumps({
             "choices": [{"message": {"content": '{"x":0.13,"y":0.545,"width":0.74,"height":0.41}'}}]
         }).encode("utf-8")
diff --git a/tests/test_observability.py b/tests/test_observability.py
index 16a29a2c6..58ba5b453 100644
--- a/tests/test_observability.py
+++ b/tests/test_observability.py
@@ -37,7 +37,7 @@ def test_post_json_sends_post_session_header(monkeypatch):
     """One post session reaches the orchestrator as a transport header."""
     captured = {}
 
-    def fake_request(method, url, *, body, headers, timeout):
+    def fake_request(method, url, *, body, headers, timeout, response_control_headers):
         captured.update(method=method, headers=headers)
         return 200, b"{}"