- demo_oscilloscope.py: Real-time oscilloscope display with continuous trace
- Shows waveform scrolling across the screen at correct time rate
- Supports all waveforms: sine, square, sawtooth, triangle, noise
- Frequency-based scrolling speed
- Single continuous trace instead of multiple copies
Related to #46
- Implements pipeline hot-rebuild with state preservation (issue #43)
- Adds auto-injection of MVP stages for missing capabilities
- Adds radial camera mode for polar coordinate scanning
- Adds afterimage and motionblur effects using framebuffer history
- Adds comprehensive acceptance tests for camera modes and pipeline rebuild
- Updates presets.toml with new effect configurations
Related to: #35 (Pipeline Mutation API epic)
Closes: #43, #44, #45
