chore(cli): bump to v0.2.5 + changelog + ruff format fix

- Python: 0.2.4 → 0.2.5 in cli/python/pyproject.toml
- Node:   0.2.4 → 0.2.5 in cli/node/package.json
- docs/changelog/sdk.mdx: new CLI v0.2.5 entry (Agent Mode bootstrap,
  --agent-caller, mem0 identify, plugin sync, claim flow, pingKey fix,
  rate-limit clarity, JSON envelope command field, envelope validation)
- CI fix: ruff format applied to config.py + test_init_internals.py

Release flow: merge → tag cli-v0.2.5 (Python CD) and cli-node-v0.2.5
(Node CD) on GitHub Releases. OIDC trusted publishing — no tokens needed.

cli/python/tests/test_init_internals.py

@@ -91,12 +91,7 @@ def test_shell_rc_does_not_create_new_export(tmp_path) -> None:
 
 def test_shell_rc_preserves_surrounding_content(tmp_path) -> None:
     rc = tmp_path / ".zshrc"
-    original = (
-        "# my zshrc\n"
-        "alias ll='ls -la'\n"
-        "export MEM0_API_KEY='old'\n"
-        "export OTHER=keepme\n"
-    )
+    original = "# my zshrc\nalias ll='ls -la'\nexport MEM0_API_KEY='old'\nexport OTHER=keepme\n"
     rc.write_text(original, encoding="utf-8")
     _update_shell_rc(rc, "newkey")
     after = rc.read_text(encoding="utf-8")