[2026.08] Stable release v1

What's Changed

• [RC] 2025.10rc1 by @shorodilov in #5
• ci: update github actions by @shorodilov in #9
• build: add bumpver package for version handling by @shorodilov in #7
• feat: update SMTP dev container by @shorodilov in #8
• build: update dependencies to latest versions by @shorodilov in #6
• [GH-11] feat: correct STATIC_URL to use full localhost URL by @shorodilov in #12
• [GH-10] feat: add a custom user model and configuration by @shorodilov in #13
• [GH-14] Set up black by @shorodilov in #15
• [Release/2025.12] Update template project by @shorodilov in #16
• [release] 2026.1 -- minor project updates by @shorodilov in #17

Full Changelog: 2024.02...v1.0.0