chore: ignore local identity files (#1001) (thanks @gerardward2007)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -55,3 +55,5 @@ apps/ios/*.mobileprovision
 # Local untracked files
 .local/
 .vscode/
+IDENTITY.md
+USER.md

CHANGELOG.md

@@ -16,6 +16,7 @@
 - CLI: set process titles to `clawdbot-<command>` for clearer process listings.
 - CLI/macOS: sync remote SSH target/identity to config and let `gateway status` auto-infer SSH targets (ssh-config aware).
 - Heartbeat: tighten prompt guidance + suppress duplicate alerts for 24h. (#980) — thanks @voidserf.
+- Repo: ignore local identity files to avoid accidental commits. (#1001) — thanks @gerardward2007.
 - Sessions/Security: add `session.dmScope` for multi-user DM isolation and audit warnings. (#948) — thanks @Alphonse-arianee.
 - Plugins: add provider auth registry + `clawdbot models auth login` for plugin-driven OAuth/API key flows.
 - Onboarding: switch channels setup to a single-select loop with per-channel actions and disabled hints in the picker.