v0.122.0

## What's Changed
* feat(api): managed tool actions with mock providers by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7214
* feat(api): bill sandbox seconds to the wallet by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7188
* feat(frontend): wallet usage debug view by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7164
* feat(api): charge builtin gateway calls to the wallet by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7162
* fix(api): harden the wallet foundation for production by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7153
* refactor(api): apply plan changes to the wallet at the next billing period by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7299
* feat(api): per-organization switches for the gateway and the wallet by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7300
* feat(api): monthly, daily, signup and purchased credits for the wallet by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7302
* feat(api): serve Gemini Flash models from our account through the gateway by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7303
* feat: plan caps for agent turns and clear limit messages by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7301
* [ops] fix(chart): stop warning about default secrets when the operator brings their own Secret by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7330
* chore(deps): bump urllib3 from 2.7.0 to 2.8.0 in /services by @dependabot[bot] in https://github.com/Agenta-AI/agenta/pull/7327
* feat(api): wallets: credits, metering and billing for models, sandboxes and tools by @junaway in https://github.com/Agenta-AI/agenta/pull/6050
* style(chart): format the default-secrets notes test by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7331
* fix(ci): render the chart NOTES in the helm test without a cluster by @mmabrouk in https://github.com/Agenta-AI/agenta/pull/7333
* [release] v0.122.0 by @github-actions[bot] in https://github.com/Agenta-AI/agenta/pull/7328


**Full Changelog**: https://github.com/Agenta-AI/agenta/compare/v0.121.8...v0.122.0