docs(fix[release]): Keep leads release-only

why: Trunk now reserves version-led changelog summaries for release cuts. Feature branches should contribute only scoped deliverable sections.

what:
- Remove the unreleased a36 summary while retaining both deliverables.
- Move the identity ADR link into its deliverable and guard the rule.

Author: tony

CHANGES

@@ -42,13 +42,6 @@ $ uvx --from 'agentgrep' --prerelease allow python
 
 <!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->
 
-agentgrep 0.1.0a36 ships consistent record handles across search and one
-pi-like slash-command surface across both TUI layouts. Content, stored-turn,
-and thread handles now agree across terminal, JSON, HUD, and MCP surfaces,
-while the HUD and grep-log share commands without Textual's global palette.
-See the {ref}`deterministic record identity contract
-<adr-deterministic-record-identity>`.
-
 ### What's new
 
 #### Consistent record handles across search (#80)
@@ -68,7 +61,8 @@ Canonical handles sit alongside them for durable comparison.
 Stores with missing occurrence or thread topology report null values instead
 of inventing relationships from filenames or timestamps. That conservative
 contract gives bookmarks, export, and similarity features a common foundation
-without making them depend on one another.
+without making them depend on one another. See the {ref}`deterministic record
+identity contract <adr-deterministic-record-identity>`.
 
 #### Predictable TUI commands and focus (#111)
 

tests/test_identity_docs.py

@@ -201,7 +201,7 @@ def test_identity_adr_keeps_refs_and_privacy_boundaries_positive() -> None:
 
 
 def test_unreleased_changelog_discloses_identity_and_tui_deliverables() -> None:
-    """The release section describes both product-level outcomes."""
+    """The unreleased section lists both outcomes without a release summary."""
     changes = _read_text("CHANGES")
     release_match = re.search(
         r"^## agentgrep (?P<version>\d+\.\d+\.\d+\w*) \(Yet to be released\)\n"
@@ -210,16 +210,17 @@ def test_unreleased_changelog_discloses_identity_and_tui_deliverables() -> None:
         flags=re.MULTILINE | re.DOTALL,
     )
     assert release_match is not None
-    version = release_match.group("version")
     release = release_match.group("body")
     identity_heading = "#### Consistent record handles across search (#80)"
     tui_heading = "#### Predictable TUI commands and focus (#111)"
+    end_marker = "<!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->"
 
     assert release.count(identity_heading) == 1
     assert changes.count(identity_heading) == 1
     assert release.count(tui_heading) == 1
     assert changes.count(tui_heading) == 1
-    assert re.search(rf"agentgrep {re.escape(version)} ships [^.]+\.", release)
+    assert end_marker in release
+    assert release.split(end_marker, maxsplit=1)[1].lstrip().startswith("### ")
     assert "### What's new" in release
     assert "adr-deterministic-record-identity" in release
     assert "repeated content" in release