Real-world changes

[area]

All sorts, here

• Removed unnecessary RPC requests when we can go to the database instead, as going to the database is a lot faster.
• Added the Dockerfile we use (from the docs)
• Changed the processor config to use the recommended pattern to improve syncing speed with factory contracts, and a script to generate the necessary constants.
• Dealt with 'duplicate' motions from when we had a storage layout issue with the voting reputation extension, which caused IDs to be reused. The duplicates are ignored, mirroring what we did on-chain.
• Added stricter guards to only handle events from contracts we know about.