feat(database): add support for table name prefixing for shared database compatibility

[triangle-z]

Summary:
This PR addresses #688 by introducing automatic support for table name prefixing in SQLAlchemy models using a custom metaclass. All model __tablename__ values are now prefixed with "adk_".

Details:

• Implement a custom DeclarativeMeta (PrefixerMeta) to prepend a prefix to all SQLAlchemy model table names.

• Currently, the prefix is hardcoded as adk_. If you want, we can make it configurable by replacing:

  table_prefix = "adk_"

  with:

  table_prefix = os.getenv("DB_TABLE_PREFIX", "adk_")  # or os.getenv("DB_TABLE_PREFIX", "") if no default

• Adjusted ForeignKeyConstraint definitions to dynamically reference StorageSession.__tablename__ instead of hardcoding "sessions".

Testing:

• Verified against pytest with no regressions:

  • No new test failures
  • No added skips or warnings
  • All tests match results from the main branch (screenshots attached)

• Below are the screenshots of test results:

This branch:

Main branch (baseline):

Please let me know your thoughts on this PR, I’m happy to iterate on this implementation or adapt it to better align with the project’s design principles.