[Docs] Link Roadmap items to tracked GitHub Issues

[artcava]

Summary

The README Roadmap section lists planned features across multiple phases, but none of the items are linked to actual GitHub Issues. This makes it impossible to track real progress, assign work, or understand what is actively being developed.

Current State

The Roadmap lists items like:

• [ ] AI migration to Azure Foundry
• [ ] Linkedin auto-update authorization token
• [ ] Configuration externalization
• [ ] Comprehensive testing (80%+ coverage)
• [ ] Post-publication analytics
• etc.

All are untracked — no linked issues, no assignees, no milestones.

Expected Outcome

Step 1 — Create GitHub Issues for each Roadmap item

For every unchecked Roadmap item, create a corresponding GitHub Issue with:

• A clear description and acceptance criteria
• The appropriate label (enhancement, bug, documentation, etc.)
• Assignment to the correct Phase milestone

Step 2 — Create GitHub Milestones

Create milestones matching the roadmap phases:

• Phase 2: Stabilization
• Phase 3: Intelligence (Q1 2026)
• Phase 4: Admin Dashboard (Q2 2026)
• Phase 5: Expansion (Q3 2026)

Step 3 — Update README Roadmap

Replace plain checkboxes with links to GitHub Issues:

- [ ] AI migration to Azure Foundry ([#XX](https://github.com/artcava/XPoster/issues/XX))
- [ ] LinkedIn auto-update authorization token ([#XX](https://github.com/artcava/XPoster/issues/XX))

Acceptance Criteria

• All Phase 2 roadmap items have a linked GitHub Issue
• GitHub Milestones created for Phases 2–5
• README Roadmap updated with issue links
• Each new issue has at minimum a label and is assigned to a milestone

[github-actions]

👋 Thanks for opening this issue! A maintainer will review it soon and label it as approved if it can proceed to development.