[Ayinkx]

Roadmap Phase 1 — Living Galaxy Map

Upgrades the existing campaign map in place. This does not add a second map or duplicate campaign progression, story archive, exploration objectives, or save data.

Changes

• Render the four existing sectors as connected planetary nodes using their existing position metadata.
• Show unlocked/locked route styling, charted systems, mastery markers, a moving route signal, and a subtle twinkling starfield.
• Add a selected-sector briefing panel with its existing description, objective, survey progress, and launch/explore actions.
• Keep keyboard selection, mobile touch targets, local saves, and existing campaign rules.
• Add tests for map coordinate generation and invalid metadata; update the campaign docs and PWA cache version.

Review / validation

Please review for layout, accessibility, and canvas compatibility. Run the web test suite and all required CI jobs. Do not merge if checks fail; Codex can fix this PR in place. CI has not been claimed passing.