Release v0.30.5

What's Changed

• fix(auth): preserve local backend after login by @overlord-letta in #3648
• fix(listener): preserve queued notification identity [LET-10501] by @letta-integration[bot] in #3629
• fix(reflection): update reflection worktree integration flow and telemetry by @amysguan in #3534
• feat(models): fix new Opus and Sonnet model xhigh reasoning tiers by @amysguan in #3545
• fix(worktree): distinguish existing worktree switches by @amysguan in #3571
• feat(cli): add stateless existing-agent sessions by @devanshrj in #3664
• refactor(agent): centralize creation policy [LET-10557] by @cpacker in #3660
• feat(cli): add letta shared-memory subcommand and make the shared memory skill git-first by @cpacker in #3653
• chore: bump version to 0.30.5 by @github-actions[bot] in #3667

Full Changelog: v0.30.4...v0.30.5