[squad:plan] Morrow Mosaic

## Concept Summary
A quiet strategy-puzzle game about restoring fractured futures by assembling stained-glass "tomorrow panels" for a city's civic observatory. Each piece predicts a small social outcome—traffic, weather, moods, shortages—and players must compose panels that guide the next day without creating unintended side effects. It's fun because every choice is readable, beautiful, and consequential: you're solving spatial puzzles while subtly steering a living town.

## Core Gameplay Loop
- Review tomorrow's requests from neighborhoods and city services
- Inspect available glass fragments, each with forecast effects and adjacency rules
- Place, rotate, and layer pieces into a limited mosaic grid
- Preview cascading outcomes before finalizing the panel
- Resolve the next day's results across the city map
- Earn trust, new fragment types, and harder civic dilemmas

## Target Platform
**PC/Steam first.** Mouse-driven placement, readable UI density, and thoughtful session length fit desktop best. It can later port well to tablet, but PC is the fastest path for iteration and discoverability.

## Art & Style Direction
- Luminous illustrated 2D with stained-glass textures and soft ink outlines
- Warm civic-fantasy mood: observatories, tramlines, rooftops, gardens
- Color communicates system states: harmony, strain, risk, surprise
- References: cathedral glass, storybook city maps, elegant board game UX

## Minimum Viable Feature Set
- Mosaic-building puzzle board with drag/rotate/place interactions
- 3–4 districts with distinct needs
- Forecast simulation with visible cause-and-effect chains
- 20–30 handcrafted glass fragments
- Day progression and scoring/trust system
- Basic narrative request system
- Unlock progression over a short campaign
- Save/load and settings menu

## Milestone Plan & Ownership

| Workstream | Subtitle | Owner | Sub-issue |
|---|---|---|---|
| M1 Prototype | Shards of Tomorrow | Keaton (Lead/Architect) | #57429 |
| M2 Vertical Slice | The First Sunrise | Fenster (Engineering) | #57425 |
| M3 Art & Content Pass | City in Color | Verbal (Docs/Narrative/Art) | #57423 |
| M4 Playable Demo | The Observatory Opens | McManus (CI/CD & Build Pipeline) | #57427 |
| QA & Test Planning | Clear Skies Checklist | Hockney (Test Engineer/QA) | #57428 |
| Security & Data Privacy Review | Silent Ledger | Kujan (Security Engineer) | #57430 |

This issue auto-closes after 1 day; the next scheduled run will start a fresh concept.

No source file, test, or entry point is named. Read the milestone sub-issues (#57429, #57425, #57423, #57427, #57428, and #57430) to understand the planned work; completion is not defined beyond the listed concept and feature set, and the issue notes that it will auto-close after one day.

Written by the indexing model from the issue text.