v0.62.0

## What's Changed
* fix(a2a-server): add early return on unsupported store in tasks metadata endpoint by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29334
* Changelog for v0.61.0-preview.0 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29344
* Changelog for v0.60.0 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29345
* fix(core,acp): format MCP tool call titles as structured signatures and segregate explanations by @jvargassanchez-dot in https://github.com/google-gemini/gemini-cli/pull/29341
* chore(release): bump version to 0.62.0-nightly.20260915.gae28844fb by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29346
* fix(core): retain oauth refresh token on refresh and make credential deletion idempotent by @villahernandez-coder in https://github.com/google-gemini/gemini-cli/pull/29339
* fix(ui): guard against negative layout dimensions in border rendering by @diegogodinezr in https://github.com/google-gemini/gemini-cli/pull/29347
* test(integration): deflake run_shell_command and file-system-interactive tests by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/29185
* fix(core): improve PTY file descriptor cleanup and execution lifecycle management by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29340
* chore/release: bump version to 0.62.0-nightly.20260918.g9450ade79 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29383
* fix(core): synchronize ConPTY process exit lifecycle and harden PTY output finalization by @jvargassanchez-dot in https://github.com/google-gemini/gemini-cli/pull/29379
* fix(cli): suppress uncaught AbortError logs during request cancellation by @urielefrenvirtusa in https://github.com/google-gemini/gemini-cli/pull/29343
* fix(core,cli): improve terminal buffer memory management and format Windows diagnostic paths by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29380
* fix(vscode-ide-companion): preserve terminal focus when closing diff tabs by @amelidev in https://github.com/google-gemini/gemini-cli/pull/29378
* fix(core): update auth error documentation link to valid anchor and add fallback (#26140) by @villahernandez-coder in https://github.com/google-gemini/gemini-cli/pull/29377
* fix(core): normalize proxy-agent esbuild interop for environment proxy resolution by @diegogodinezr in https://github.com/google-gemini/gemini-cli/pull/29401
* fix(cli): emit tool_call update prior to request_permission in ACP mode by @urielefrenvirtusa in https://github.com/google-gemini/gemini-cli/pull/29439
* Feat/gemini 3.8 flash 3.5 flash lite by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/29443
* Check for vsc integration test presence when attempting to run. by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/29462


**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.61.0...v0.62.0