Enable API Access for Power Users

As the platform matures, power users and developers would benefit greatly from programmatic API access. This proposal suggests creating a RESTful API that allows authenticated users to submit queries, retrieve results, and access their query history programmatically. Rate limits would be based on karma tier, with higher tiers getting more generous quotas. This would open up possibilities for integrations, automation, and third-party tools built on top of the Sentient Lattice.