fix: seed Late Demo public post after the analysis-run cutoff (v2.9.1)

CHANGELOG.d/2.9.1-late-demo-cutoff-post.md

@@ -0,0 +1,5 @@
+# 2.9.1 Late Demo public post
+
+Seed inserts Late Demo public post after the January 12 knowledge
+cutoff so the ADR 0016 list filter has a falsifiable own-corp
+counter-example. No second cutoff implementation.

CHANGELOG.md

@@ -4,6 +4,16 @@ All notable changes to this project are documented here. Format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); versioning follows
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.9.1] - 2026-08-17
+
+### Added
+
+- `make seed` inserts Late Demo public post (2026-01-13) so the
+  January 12 Demo Corp run's knowledge cutoff is falsifiable: Demo
+  public post still opens; Late Demo does not. The cutoff filter
+  itself already lives on this stack (ADR 0016). TEPP seed already
+  landed through `tepp_client` (#118).
+
 ## [2.9.0] - 2026-08-17
 
 ### Added

docs/adr/0016-analysis-run-knowledge-cutoff-posts.md

@@ -45,8 +45,9 @@ run.
 ## Consequences
 
 - After `make seed`, the Demo Corp lineage run lists Demo public post
-  and other in-cutoff Demo Corp titles. The later fixture account-review
-  post (2026-02-10) does not appear.
+  and other in-cutoff Demo Corp titles. Late Demo public post
+  (2026-01-13) and the later fixture account-review post (2026-02-10)
+  do not appear.
 - Open the run: Demo public post is marked updated after cutoff
   (`updated_at` 2026-01-13). Demo private post is not.
 - Open a marked title: the popup shows **Body this run knew** from

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "2.9.0",
+  "version": "2.9.1",
   "type": "module",
   "scripts": {
     "dev": "vite",

lineageweave/__init__.py

@@ -55,4 +55,4 @@
     "sentence_excerpts",
 ]
 
-__version__ = "2.9.0"
+__version__ = "2.9.1"

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "lineageweave"
-version = "2.9.0"
+version = "2.9.1"
 description = "Reconstructs git-branch-style lineage DAGs from scattered short records using multi-channel score fusion and LLM adjudication."
 readme = "README.md"
 license = { text = "MIT" }

scripts/seed_demo_data.py

@@ -309,6 +309,24 @@ def seed(
                 "updated_at = '2026-01-10T12:00:00Z' "
                 "where post_title = 'Demo private post'"
             )
+            # #110 counter-example: a later own-corp public post stays off
+            # the January 12 run list (created_at after knowledge_cutoff).
+            late_demo_post_created_at = "2026-01-13T09:00:00Z"
+            cur.execute("select post_id from source_post where post_title = 'Late Demo public post'")
+            if cur.fetchone() is None:
+                cur.execute(
+                    "insert into source_post (author_account_id, corporate_entity_id, process_unit_id, post_title, post_body, voc_type_code, visibility_code, created_at, updated_at) "
+                    "values (%s, %s, %s, 'Late Demo public post', "
+                    "'Written after the Demo Corp lineage-run knowledge cutoff.', "
+                    "'voc', 'public', %s, %s)",
+                    (
+                        account_ids["demo.analyst"],
+                        corporate_entity_id,
+                        process_units["DEMO-PU-A"],
+                        late_demo_post_created_at,
+                        late_demo_post_created_at,
+                    ),
+                )
             cur.execute(
                 "insert into post_counterparty_entity (post_id, counterparty_entity_name, relationship_type_code) "
                 "values (%s, 'Northridge Grid', 'rel_voc'), (%s, 'Demo Corp', 'rel_voc') "

tests/test_seed_late_demo_post.py

@@ -0,0 +1,13 @@
+"""#110 cutoff counter-example stays in the Demo Corp seed."""
+
+from pathlib import Path
+
+_SEED_SCRIPT = Path(__file__).resolve().parents[1] / "scripts" / "seed_demo_data.py"
+
+
+def test_seed_includes_late_demo_public_post_after_cutoff() -> None:
+    """Late Demo public post is dated after the January 12 knowledge cutoff."""
+    seed = _SEED_SCRIPT.read_text(encoding="utf-8")
+    assert "Late Demo public post" in seed
+    assert 'late_demo_post_created_at = "2026-01-13T09:00:00Z"' in seed
+    assert "2026-01-12T12:00:00Z" in seed