feat: updates conf to allow setting db name

[semmet95]

Summary by CodeRabbit

• Chores

  • Configuration system updated to support DB_NAME (defaults to sourcescore) and PORT (defaults to 8080) environment variables.

• Tests

  • Added test coverage for database name configuration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: e6f46e37-f795-4b86-bde7-73157ff1a025

📥 Commits

Reviewing files that changed from the base of the PR and between 1f2ac0f and 74f4ea3.

📒 Files selected for processing (3)

• cmd/app/main.go
• pkg/conf/conf.go
• pkg/conf/conf_test.go

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📝 Walkthrough

Walkthrough

Database name configuration is refactored from a compile-time constant to an environment-driven field. The DbName field now reads from the DB_NAME environment variable with a "sourcescore" default, tests verify this behavior, and the DSN construction reference is updated accordingly.

Changes

Database name environment configuration

Layer / File(s)	Summary
Configuration structure and environment defaults pkg/conf/conf.go	The DbName constant is removed and the conf struct field now sources from DB_NAME environment variable with default "sourcescore". The Port field receives an explicit env-default of "8080".
Configuration behavior tests pkg/conf/conf_test.go	Test constant SampleDbName is added and Ginkgo When cases verify that Cfg.DbName defaults to "sourcescore" and respects the DB_NAME environment variable override.
DSN construction reference update cmd/app/main.go	The PostgreSQL DSN construction updates the dbname format argument from conf.DbName to conf.Cfg.DbName.

🎯 2 (Simple) | ⏱️ ~8 minutes

In fields of config, a rabbit hops with glee,
No constants needed—env sets us free!
DbName now flows from the source outside,
With defaults and tests as our steadfast guide. 🐰

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: making the database name configurable via environment variables instead of a hardcoded constant.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/db-name-conf

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[cubic-dev-ai]

No issues found across 3 files

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