v0.121.6

## What's Changed
* [feat] Add Claude Sonnet 5.5 to the Claude, Pi, prompt, and pricing catalogs by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7231
* [fix] Stop sending the immutable slug when editing a custom secret by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7234
* website: current positioning on blog surfaces + dated legacy-post notices by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7227
* fix(api): stop a NUL in a record body from looping the records stream by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7218
* [fix] Keep the Advanced drawer open after removing a custom secret by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7233
* Add job hunt research template by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7241
* [fix] Scope /m permission checks to the requested project by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7242
* fix(runner): bound runaway output and preserve crash recovery context by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7243
* fix(frontend): scope session attachment uploads to the session project by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7240
* [feat] Polish the sidebar session list and rail details by @ashrafchowdury in https://github.com/Agenta-AI/agenta/pull/7220
* [fix] Stop logging network failures of session reads as errors by @ashrafchowdury in https://github.com/Agenta-AI/agenta/pull/7219
* fix(runner): version Daytona sandbox snapshots by @Sanchar127 in https://github.com/Agenta-AI/agenta/pull/7221
* [feat] Create with AI in the agent config add menus by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7223
* [fix] Polish the session timeline and survive failed reads on refresh by @ashrafchowdury in https://github.com/Agenta-AI/agenta/pull/7226
* [fix] Show the no-speech notice only when speech was heard by @ashrafchowdury in https://github.com/Agenta-AI/agenta/pull/7255
* [release] v0.121.6 by @github-actions[bot] in https://github.com/Agenta-AI/agenta/pull/7232

## New Contributors
* @Sanchar127 made their first contribution in https://github.com/Agenta-AI/agenta/pull/7221

**Full Changelog**: https://github.com/Agenta-AI/agenta/compare/v0.121.5...v0.121.6