fix(v2): run pre/post build hooks in project directory instead of bin directory

[leaanthony]

Summary

Fixes #3627

Build hooks were executing in options.BinDirectory (e.g., build/bin) instead of the project root directory. This caused hooks that reference project-local files (like Makefile, package.json, etc.) to fail because the working directory was wrong.

Changes

• Changed shell.RunCommand call in executeBuildHook() from options.BinDirectory to options.ProjectData.Path (v2/pkg/commands/build/build.go:451)
• Added test in v2/test/3627/

Test plan

• Configure a preBuildHooks in wails.json that references a project-local file (e.g., "*/*": "make lint")
• Run wails build and verify the hook executes in the project root directory
• Verify post-build hooks also run in the correct directory

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[leaanthony]

🤖 PR Triage Review

✅ Accepted

Runs pre/post build hooks in project directory instead of bin directory (v2 CLI). Fixes build hook execution context.

Platform: All (v2, CLI)

Next Steps: Dispatching for testing on all platforms.

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Reviewed by Wails PR Reviewer Bot