[instructions] Sync instruction files with release v0.80.4

.github/aw/memory.md

@@ -250,6 +250,7 @@ tools:
     branch-name: memory/agent-notes   # Optional: custom branch name
     target-repo: owner/other-repo     # Optional: store in another repo
     allowed-extensions: [".json", ".md"]
+    format-json: true                 # Optional: pretty-print committed .json files (2-space indent) for readable diffs (default: false)
     max-file-size: 10240              # bytes
     max-file-count: 100
 ```

.github/aw/safe-outputs-management.md

@@ -40,6 +40,9 @@ description: Safe-output reference for update, label, milestone, project, releas
     merge-pull-request:
       required-labels: [ready-to-merge]   # Optional: ALL listed labels must be present on the PR
       allowed-branches: ["feature/*"]    # Optional: glob patterns for allowed source branch names
+      target: "triggering"                # Optional: "triggering" (default, current PR) or "*" (any PR with pull_request_number)
+      target-repo: "owner/repo"           # Optional: cross-repository
+      allowed-repos: [owner/other]        # Optional: additional repos the agent can merge in
       max: 1                              # Optional: max merges (default: 1)
   ```