Add a `.dockerignore` — the full context (incl. `target/`) is copied into the build

[Darkdruce]

Summary

There is no .dockerignore, and the Dockerfile does COPY . . twice, so the entire working tree (including a possibly-huge target/, .git/, local *.db) is sent to the build context.

Location

• Dockerfile:7, 14 (COPY . .), no .dockerignore present.

Details & impact

Slow builds, bloated context, risk of leaking a local stellargate.db or .env into image layers.

Suggested fix

Add .dockerignore excluding target/, .git/, *.db, .env, etc.

Acceptance criteria

• Build context excludes build artifacts and secrets.

[DANeiraGarcia]

Hi! I'd love to take care of this. I will add a .dockerignore file to exclude heavy directories like target/, .git/, and any local .env files from being copied into the Docker build context. Please assign this to me!

[ayomideaccess]

Permit me to resolve this issue. I'll complete it soon. I can do this

[grantfox-oss]

🦊 GrantFox — @ayomideaccess has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #148)
2. Your PR will be reviewed by the StellarGateLabs maintainers

Good luck! Track your progress on GrantFox.