store and load precomputed vectors

[dovinmu]

• [x] save to csv sql
• [x] verify that rowid is computed the same each time for citations
• [x] verify that rowid for citations is same as for inspections_citations
• [x] load csv sql into database, referring to prejoined table

[dovinmu]

to transfer the embeddings table to the new table:

sqlite3 aphis_reports_embeddings.db ".dump _embeddings_citations" > dump.sql
sqlite3 aphis_reports.db < dump.sql
sqlite-utils rename-table aphis_reports.db _embeddings_citations _embeddings_citation_inspection
sqlite-utils transform aphis_reports.db citation_inspection --pk rowid