Tooling & DX updates

[thibaudcolas]

General tooling and process updates to sustain maintenance of the project

Acceptance criteria

• agents.md adoption #436
• Agent skills adoption #437
• Add Docker Compose setup #433
• docs: update Poetry env activation command for Poetry 2.x #428 or switch to uv package manager
• Fix 262 tests #277
• Audit NPM dependencies #393
• TBC front-end changes based on project plans

Working on this

Assigning this to @Raghaddahi to work on this collaboratively with @thibaudcolas