refactor(agent-loop): simplify message machine

scripts/gen-cordis-catalog.ts

@@ -35,10 +35,8 @@ export const LINK_MAP: Record<string, string> = {
   ContinuationDecision: 'core.md',
   ContinuationStop: 'core.md',
   GenerateOptions: 'core.md',
-  InboxPlacement: 'core.md',
   MessageId: 'core.md',
   HookContext: 'core.md',
-  SettleReason: 'core.md',
   LlmCallConfig: 'core.md',
   LlmModelContext: 'core.md',
   LlmModelReasoningInfo: 'core.md',
@@ -52,7 +50,7 @@ export const LINK_MAP: Record<string, string> = {
   UserMessage: 'session.md',
   PromptDecision: 'core.md',
   RequestErrorAction: 'core.md',
-  RequestError: 'core.md',
+  RequestFailureContext: 'core.md',
   PreparedReferencedMessage: 'session-reference.md',
   SessionReferenceCandidate: 'session-reference.md',
   SessionReferenceInput: 'session-reference.md',

scripts/type-equiv.manifest.json

@@ -86,21 +86,11 @@
       "symbol": "SessionEvent",
       "source": "packages/core/session/src/types.ts"
     },
-    {
-      "doc": "docs/core-data-structures/core.md",
-      "symbol": "SendTarget",
-      "source": "packages/core/agent/src/types.ts"
-    },
     {
       "doc": "docs/core-data-structures/core.md",
       "symbol": "InboxPlacement",
       "source": "packages/core/agent/src/types.ts"
     },
-    {
-      "doc": "docs/core-data-structures/core.md",
-      "symbol": "SendOptions",
-      "source": "packages/core/agent/src/types.ts"
-    },
     {
       "doc": "docs/core-data-structures/core.md",
       "symbol": "CancelOptions",