🐛 [bug fix] Replace psycopg2 with psycopg for Python 3.14 compatibility

[JenR8ed]

The build is failing on Vercel because psycopg2-binary==2.9.9 does not have pre-compiled binary "wheels" available for CPython 3.14.3. This causes the build to fall back to a source compilation which fails due to the missing pg_config executable on Vercel's serverless environment.

To fix this, I have:

1. Replaced psycopg2-binary==2.9.9 with the modern psycopg>=3.1.18 (v3) in requirements.txt.
2. Updated the database connection imports and calls in seed_db.py from psycopg2 to psycopg.
3. Updated the mock references in tests/test_seed_db_security.py to target psycopg instead of psycopg2.

I verified that the test suite passes successfully.

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PR created automatically by Jules for task 6982451464418265191 started by @JenR8ed

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
notion-unified-webhook	Ignored		Jul 11, 2026 12:21pm

[gemini-code-assist]

Code Review

This pull request updates the PostgreSQL adapter in requirements.txt from psycopg2-binary to psycopg (v3). The reviewer notes that the pure Python psycopg package requires a system-installed libpq library, which can lead to runtime import errors in serverless environments like Vercel. They recommend using psycopg[binary] instead to bundle the pre-compiled binaries.

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[gemini-code-assist]

In Psycopg 3, the base psycopg package is a pure Python implementation that requires a system-installed libpq library to function. On serverless environments like Vercel, libpq is typically not pre-installed, which will cause runtime import errors (e.g., ImportError: no pq wrapper available).

To ensure the library works out-of-the-box without requiring system-level dependencies or compilation, you should use the [binary] extra, which installs the pre-compiled psycopg-binary package alongside it.

psycopg[binary]>=3.1.18