[Medium] Host static /.well-known/memact-configuration

[keepsloading]

Expose the basic capability document endpoint for provider discovery.

[keepsloading]

Friendly reminder for SSoC26 contributors: When you submit a Pull Request for this issue, please remember to also raise a dummy PR in the Memact/Context repository that references your original PR. This is required for your contribution to be considered for points on the SSoC leaderboard!

[diksha78dev]

@keepsloading Hi, I am SSOC'26 contributor and i would like to work on this issue, can you assign this issue to me?