feat: ability to configure foreign_keys pragma for SQLite

[ryands17]

This PR allows configuring the foreign_keys pragma for SQLite. Some projects work without foreign keys so this would be a nice addition to the configuration

[kaplanelad]

Thank you, @ryands17, for your pull request.

Instead of configuring each PRAGMA setting individually, perhaps we could introduce a more general mechanism. For instance, changing the enable_foreign_keys setting to run_on_start would allow users to configure any PRAGMA settings they desire. This approach would offer greater flexibility and accommodate a wider range of configurations.

WDYT?

[ryands17]

@kaplanelad I think that's a better approach! Would this be through the config itself? So instead of maybe a single value, we could add the options specified currently

[kaplanelad]

If we add this setup for each property, it will be irrelevant for Postgres. I think a generic configuration would be a better approach.

[ryands17]

@kaplanelad Is there a DB specific config that can be added? I can look into that and add these configurable setting there with defaults if not passed in.

[kaplanelad]

You can retain the existing configuration; however, if a new configuration is provided, it will override the existing one.

Configuration Example

...
# Database Configuration
database:
  # Database connection URI
  uri: {{ get_env(name="DATABASE_URL", default="sqlite://myapp_development.sqlite?mode=rwc") }}

  # Commands to run when the database starts
  run_on_start:
    PRAGMA foreign_keys = ON;
    PRAGMA journal_mode = WAL;
    PRAGMA synchronous = NORMAL;
    PRAGMA mmap_size = 134217728;
    PRAGMA journal_size_limit = 67108864;
    PRAGMA cache_size = 2000;
...

Behavior

• If the run_on_start field is defined in the configuration, it will be used as-is.
• If run_on_start is not provided, the application will use the default commands defined in the code.

WDYT?

[ryands17]

@kaplanelad Makes sense! I'm guessing this would just be for SQLite so I can update this PR to contain this if that's ok?

[kaplanelad]

Yes, sounds good!

[ryands17]

@kaplanelad made the changes, wdyt?

[kaplanelad]

Ideally, this value should be supported for other cases as well.
So maybe add a comment explaining what it does?
For example: Execute query after initializing the DB

[kaplanelad]

@kaplanelad made the changes, wdyt?

Can you check my note?

[ryands17]

@kaplanelad Does this look good?