fix(ci): resolve PG 17 showcase test failure

[tobyhede]

Add missing dir to test:integration:showcase task so mise --env tls runs from tests/ where mise.tls.toml exists, correctly loading TLS environment variables (CS_DATABASE__HOST and CS_DATABASE__PORT).

Fix quoting bug in proxy:up container detection where unquoted variable expansions collapsed multi-line docker ps output, causing grep and cut to select the wrong container when multiple postgres containers are running.

Summary by CodeRabbit

• Tests

  • Improved integration test environment configuration with enhanced directory context and error diagnostics
  • Strengthened test execution with more robust error reporting

• Bug Fixes

  • Fixed shell quoting issues in container detection logic
  • Corrected variable handling to prevent unintended text expansion during environment setup

[coderabbitai]

📝 Walkthrough

Walkthrough

Mise.toml updated with improved shell quoting in proxy-up logic for command substitution and diagnostic output, plus configuration additions to the showcase integration test task including directory context and Rust backtrace environment variable.

Changes

Cohort / File(s)	Summary
Shell Quoting Fixes mise.toml	Fixed unquoted grep result in Postgres container check, wrapped command substitution for host extraction in quotes, and quoted echo variable outputs to prevent unintended expansion.
Test Task Configuration mise.toml	Added dir field to [tasks."test:integration:showcase"] pointing to config_root/tests and updated run block to include RUST_BACKTRACE=full for the showcase invocation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 Quotes now guard our shell commands tight,
No word-splitting ruins the night,
Backtrace trails light the test's way,
A tidy config saves the day! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: fixing a PG 17 showcase test failure by resolving issues with environment setup and container detection logic in mise.toml.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix-intermittent-tests

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No actionable comments were generated in the recent review. 🎉

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[freshtonic]

Good catch sir!