What does this PR do?

Eliminates the Python altimate-engine dependency entirely. All 73 bridge methods now run natively in TypeScript — no Python, no pip, no venv.

Architecture:

• @altimateai/altimate-core napi-rs bindings for 34 Rust SQL analysis methods
• @altimateai/drivers shared workspace package with 10 database drivers
• Native connection registry, credential store, SSH tunneling, Docker discovery
• Schema cache (SQLite FTS), FinOps, dbt, local testing
• Warehouse telemetry (5 event types)

Deleted: packages/altimate-engine/ (~17K lines), bridge/ client + engine

New: packages/drivers/ (10 drivers), native/ handlers, 186+ E2E tests, driver docs

Type of change

• New feature
• Breaking change (Python dependency removed)

Issue for this PR

Closes #210 Closes #214 Closes #215 Closes #216 Closes #217 Closes #218 Closes #219 Closes #220

How did you verify your code works?

1. TypeScript typecheck: 0 errors
2. 200+ unit tests (dispatcher, altimate-core, connections, schema, finops, dbt, telemetry)
3. 186+ E2E driver tests (DuckDB, SQLite, PostgreSQL, MySQL, SQL Server, Redshift, Snowflake, Databricks, BigQuery)
4. 14 adversarial telemetry safety tests
5. 4-model code review + 17 Sentry bot comments fixed
6. Upstream merge conflicts resolved, keepOurs patterns updated

Checklist

• My code follows the project's coding standards
• I have performed a self-review of my code
• I have added tests
• New and existing tests pass locally
• I have updated documentation as needed