Fix LeBlanc Reflection Deathknell via updated rules

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "kai"
-version = "0.21.1"
+version = "0.21.2"
 edition = "2021"
 default-run = "kai"
 

plans/reflection-deathknell/review/integration.md

@@ -0,0 +1,46 @@
+# LeBlanc Reflection / Deathknell integration
+
+Kai 0.21.2 pins Agni 6fad1183, containing the fix and regression tests in
+[abysl/agni#1](https://github.com/abysl/agni/pull/1). Merge that rules PR first.
+
+## Behavior
+
+LeBlanc's copy of Honest Broker and the original now each create one Gold when
+both die in combat. Temporary kills the Reflection at its controller's
+Beginning Phase before scoring, so the copied Deathknell also creates Gold.
+Printed triggered and activated abilities survive their token source leaving
+play; copied statics apply immediately. Rules, not Kai rendering code, own
+this behavior.
+
+## Changes
+
+- Update all existing Agni Git pins together to the reviewed fix commit.
+- Bump the application patch version from 0.21.1 to 0.21.2.
+- Leave unrelated registry dependencies, the framework wire protocol, and UI
+  unchanged.
+
+Kai still builds the rules copy in Agni, not the extracted agni-rfb repository.
+The new plugin is 0.9.1 with blob version 16. Existing supported states decode,
+but old snapshots cannot reconstruct missing ability identity for a token
+that had already disappeared. Existing matches retain their pinned module.
+
+## Verification
+
+- `bash ci/check.sh` passed with Python and native build dependencies supplied
+  by a Nix shell: ten dependency-free tests, connectivity-driver path checks,
+  and all-target headless compile against the exact updated Cargo.lock.
+- Repository `treefmt --ci` passed.
+- Agni's ten serialized Reflection regressions, full rules unit suite,
+  compatibility tests, plugin tests, fast checks, portable release build, and
+  hardening passed. See its PR for counts and an unrelated pre-existing broad
+  replay fixture failure.
+- No manual GUI/network match, full Kai application test run, or Android build
+  was performed for this dependency-only application update.
+
+## Release
+
+Align the sibling Agni checkout using `ci/agni-revision.py` and rebuild/harden
+bundled engine/game modules with the existing module-build helpers. No
+compiled module or artwork is committed or published by this change. If the
+Agni PR is squash-merged, update this lockfile to its final main commit before
+merging/releasing Kai.