Milestone: Launch Data API service MVP

[birdychang]

eta: 2023-09-30 description: Mercury’s objectives are twofold:

• to provide a centralized service with a user-friendly and language-agnostic API containing the different datasets (historical and monitoring) that Sentinel offers
• to help analysts and research scientists get their hands on historical Filecoin chain analytics data using tools they’re most familiar with: Python, Pandas, and Jupyter.

More details in the project notion.

### Tasks
- [x] https://github.com/filecoin-project/sentinel/issues/249
- [x] https://github.com/filecoin-project/sentinel/issues/250
- [x] https://github.com/filecoin-project/sentinel/issues/248
- [x] https://github.com/filecoin-project/sentinel/issues/247
- [ ] https://github.com/filecoin-project/sentinel/issues/246
- [ ] https://github.com/filecoin-project/sentinel/issues/251
- [x] https://github.com/filecoin-project/sentinel/issues/252
- [x] https://github.com/filecoin-project/sentinel/issues/253
- [x] https://github.com/filecoin-project/sentinel/issues/254
- [ ] https://github.com/filecoin-project/sentinel/issues/255
- [ ] https://github.com/filecoin-project/sentinel/issues/256
- [ ] https://github.com/filecoin-project/sentinel/issues/257