Compaction: preserve opaque identifiers in summaries (openclaw#25553) thanks @rodrigouroz

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: rodrigouroz <384037+rodrigouroz@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/config/types.agent-defaults.ts

@@ -269,6 +269,7 @@ export type AgentDefaultsConfig = {
 };
 
 export type AgentCompactionMode = "default" | "safeguard";
+export type AgentCompactionIdentifierPolicy = "strict" | "off" | "custom";
 
 export type AgentCompactionConfig = {
   /** Compaction summarization mode. */
@@ -281,6 +282,10 @@ export type AgentCompactionConfig = {
   reserveTokensFloor?: number;
   /** Max share of context window for history during safeguard pruning (0.1–0.9, default 0.5). */
   maxHistoryShare?: number;
+  /** Identifier-preservation instruction policy for compaction summaries. */
+  identifierPolicy?: AgentCompactionIdentifierPolicy;
+  /** Custom identifier-preservation instructions used when identifierPolicy is "custom". */
+  identifierInstructions?: string;
   /** Pre-compaction memory flush (agentic turn). Default: enabled. */
   memoryFlush?: AgentCompactionMemoryFlushConfig;
 };