pricing: stage 2; project level embedded analytics

[royendo]

Needs: #9090

Loom: https://www.loom.com/share/9ea8ac933c864595995050de5d98bd7f

Need to work a bit on the dashboards that we'll embed here but thats on Rill project level

Checklist:

• Covered by tests
• Ran it and it works as intended
• Reviewed the diff before requesting a review
• Checked for unhandled edge cases
• Linked the issues it closes
• Checked if the docs need to be updated. If so, create a separate Linear DOCS issue
• Intend to cherry-pick into the release branch
• I'm proud of this work!