feat(resilience): add agent immortality foundation [Story 482.1] (#718)

Author: rafaelscosta

.aiox-core/core/index.js

@@ -39,6 +39,9 @@ const healthCheck = require('./health-check');
 // External executor delegation
 const externalExecutors = require('./external-executors');
 
+// Resilience primitives
+const resilience = require('./resilience');
+
 /**
  * Core module exports
  */
@@ -88,6 +91,9 @@ module.exports = {
   // External executors
   externalExecutors,
 
+  // Resilience
+  resilience,
+
   // Version info
   version: '2.0.0',
   moduleName: 'core',

.aiox-core/core/resilience/README.md

@@ -0,0 +1,38 @@
+# AIOX Resilience
+
+Core resilience modules that preserve agent execution continuity after fatal failures.
+
+## Agent Immortality Protocol
+
+```js
+const {
+  AgentImmortalityProtocol,
+  CauseOfDeath,
+} = require('@aiox-squads/core/resilience');
+
+const protocol = new AgentImmortalityProtocol(process.cwd());
+
+const result = protocol.captureFailure({
+  agentState: {
+    id: 'dev-1',
+    lastGoal: 'Implement story 482.1',
+    lastSuccessfulStep: 'Created tests',
+    currentAction: 'retry failing tool call',
+    workingMemory: ['large history omitted', 'last useful step'],
+    criticalVariables: { storyId: '482.1' },
+  },
+  error: new Error('Tool execution failed: invalid schema'),
+});
+
+console.log(result.reincarnationContext);
+console.log(result.report.cause === CauseOfDeath.TOOL_EXECUTION_FAILURE);
+```
+
+The protocol records:
+
+- a compact autopsy report, without rehydrating the full failed context;
+- a reincarnation queue item with prevention directives;
+- a delta state commit that can be replayed later;
+- an evolution event for repeated failure-pattern analysis.
+
+Storage defaults to `.aiox/immortality/` inside the project root.