Implement feedback from PR #594: stricter dev version check and continue-anyway dialog

[Copilot]

Addresses two code review feedback items from PR TibixDev#594:

Stricter dev version detection

Changed from substring match to regex pattern to prevent false positives:

// Before: matches "developer edition", "device", etc.
if (dockerComposeOutput.includes("dev")) { ... }

// After: matches only standalone "dev" or "vdev" as version string
if (/version\s+(dev|v?dev)\b/i.test(dockerComposeOutput)) { ... }

Continue-anyway workflow for unmet prerequisites

• Replaced disabled "Next" button with orange "Continue Anyway" button when prerequisites fail
• Added confirmation dialog warning about potential installation failures
• Users must explicitly acknowledge risks before proceeding with unmet requirements

Original prompt

Implement the latest feedback from TibixDev#594.

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.