ci: add cross-platform validation for Linux, macOs, and Windows

[slyt3]

Github Action workflow to ensure the acontext CLI remains stable across diff operating systems

so while implementing disk features (grep,glob) I noticed the need to verify file-system logic on non-Linux env.

This Pipeline automates that process

Key changes

1. Multi-OS matrix. It will validate build and tests on ubuntu-latest, macos-latest and windows-latest
2. Race Detection. It will run go test with -race flag that will catch concurrency bugs early.
3. Dependency Caching. So optimizing for the nested project structure ( src/server/api/go) to ensure fast execution
4. Safety timeouts. Includes a 10minute timeout to prevent runaway processes

So this would and will act a quality gate for my pending PR and all future contributions

[slyt3]

@gusye1234 @GenerQAQ

[gusye1234]

hey @slyt3 , you open this pr to validate CLI, but src/sever/api is our api layer.

cli code is in src/client/acontext-cli.

[slyt3]

Hey thanks, my mistake haha, i will update the working dir in the CI to point to src/client/acontext-cli right now, it will ensure we are validate the correct layer, I Will push the fix soon

[GenerQAQ]

Thanks for the suggestion!

However, we already have cross-platform validation covered in our existing cli-test.yaml workflow. Here's what it includes:

Cross-platform build (lines 100-148):

• Builds on ubuntu-latest, macos-latest, and windows-latest
• Uploads build artifacts for each platform

Testing with race detector (lines 22-65):

• Runs go test -v -race -coverprofile=coverage.out ./...
• Uploads coverage to Codecov

Additional features the current workflow provides:

• Lint job - runs golangci-lint for code quality
• Path filtering - only triggers when src/client/acontext-cli/** changes, saving CI resources
• Install script testing - validates the installation script on Linux/macOS

Adding a separate Cross-Platform Validation workflow would result in duplicate CI runs and unnecessary resource usage.