- Dockerfile for Next.js static export with nginx
- nginx.conf with proper SPA routing (try_files fallback)
- docker-compose.yml with Traefik labels for post-appitalism.app
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Fixed critical bug where outflow would decrease when crossing from
building to capacity zone. The original formula caused a discontinuity.
**Problem:**
Old formula had outflow jumping from (inflow × ratio) in building zone
to (inflow - max) in capacity zone, causing outflow to DROP when
crossing the threshold.
Example (min=100, max=300):
- At inflow=300: outflow = 300 (100% sharing)
- At inflow=301: outflow = 1 (sudden drop!)
**Solution:**
1. Changed capacity threshold from max to 1.5 × max
2. Building zone now uses linear interpolation from 0 to 0.5 × max
3. Capacity zone retains max and shares all excess
New formula guarantees:
✓ Monotonically increasing outflow as inflow increases
✓ Continuous at all zone boundaries
✓ At inflow = min → outflow = 0
✓ At inflow = 1.5 × max → outflow = 0.5 × max
✓ At inflow > 1.5 × max → retain max, share excess
Zones:
- Deficit (inflow < min): outflow = 0
- Building (min ≤ inflow < 1.5×max): progressive linear growth
- Capacity (inflow ≥ 1.5×max): outflow = inflow - max
Changes:
- lib/flow-v2/engine-v2.ts: Updated getFlowZone() and calculateOutflow()
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Implemented a clean, working undo/redo system using useRef to avoid React state management issues.
## Features Added
- **Undo**: Ctrl+Z (Cmd+Z on Mac) to undo the last action
- **Redo**: Ctrl+Shift+Z (Cmd+Shift+Z on Mac) to redo
- **Delete**: Delete key to remove selected shape
- **Escape**: Escape key to deselect
- UI buttons for undo/redo with proper enabled/disabled states
## Technical Implementation
- Uses `useRef` instead of `useState` for history to avoid stale closures
- Deep clones shapes when saving to prevent reference issues
- Maintains up to 50 history states (auto-prunes oldest)
- Properly initializes history with current canvas state on mount
- Uses `e.code === 'KeyZ'` for keyboard detection (shift-independent)
- Includes propagator cleanup when deleting arrows via Delete key
## Key Design Decisions
- **useRef over useState**: Avoids complex state synchronization and stale closure bugs
- **Deep cloning**: JSON.parse(JSON.stringify()) ensures each history entry is independent
- **Initialization guard**: Prevents saving to history before component fully initializes
- **Force re-render**: Uses dummy state update to refresh button disabled states
## Architecture
```typescript
historyRef.current = [state0, state1, state2, ...]
historyIndexRef.current = currentIndex
```
Operations:
- saveToHistory(): Truncates future, adds new state, increments index
- undo(): Decrements index, restores previous state
- redo(): Increments index, restores next state
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Update project files, components, and assets from main branch.
#VERCEL_SKIP
Co-authored-by: Jeff Emmett <46964190+Jeff-Emmett@users.noreply.github.com>
Jeff Emmett
Jeff Emmett
Shawn Anderson
v0