chore: merge main into release branch

Carry the current upstream Hermes context-engine contract forward while preserving the Just-only CI interface.

Author: offendingcommit

.github/workflows/test.yml

@@ -48,8 +48,8 @@ jobs:
       - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803  # v6
       - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803  # v6
         with:
-          repository: offendingcommit/hermes-agent
-          ref: d3b1cfe9a80531e0682b1e66752e04cea29d5d4a
+          repository: NousResearch/hermes-agent
+          ref: f80f453ae0679347e38abc917c7f94f717bf96c5
           path: .hermes-agent-deployed
       - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
         with:
@@ -63,7 +63,7 @@ jobs:
           HERMES_AGENT_PATH: ${{ github.workspace }}/.hermes-agent-deployed
         run: |
           test "$(git -C "$HERMES_AGENT_PATH" rev-parse HEAD)" = \
-            "d3b1cfe9a80531e0682b1e66752e04cea29d5d4a"
+            "f80f453ae0679347e38abc917c7f94f717bf96c5"
           just test-context-engine-contract
 
   # Track forward drift against upstream main without making Amber depend on

tests/test_context_engine_contract.py

@@ -87,14 +87,22 @@ def handle_tool_call(self, name, args, **kwargs):
 
         self.assertIs(manager._context_engine, engine)
         self.assertEqual(summary.context_engine, "continuity-contract")
-        self.assertEqual(summary.context_engine_registration, "accepted")
+        # Stock v2026.8.13 returns no acceptance value from the public
+        # registrar, so the kit must not overstate the lifecycle receipt.
+        self.assertEqual(
+            summary.context_engine_registration, "declared/submitted"
+        )
         activated = copy.deepcopy(manager._context_engine)
         self.assertIsNot(activated, engine)
         self.assertEqual(activated.name, engine.name)
         self.assertNotIn("continuity_recover", manager._plugin_tool_names)
 
-        with self.assertRaisesRegex(RuntimeError, "context engine.*registered"):
-            hpk.register_plugin(ctx, (), context_engine=ContractEngine())
+        second_summary = hpk.register_plugin(
+            ctx, (), context_engine=ContractEngine()
+        )
+        self.assertEqual(
+            second_summary.context_engine_registration, "declared/submitted"
+        )
         self.assertIs(manager._context_engine, engine)