v0.3.0 — LCD, IoT & AI Agent Features

New Features

• gauge(value, max) — Progress/level gauge bar with custom fill chars, labels, and threshold alerts. Perfect for LCD battery displays, tank levels, task completion.
• stats(values) — Summary statistics (min/max/avg/median/stdDev/percentiles) with a compact .summary string. Feed it to an LLM or print on line 2 of a 16x2 LCD.
• sparkWithStatus(values, thresholds) — Threshold-aware sparkline returning ok/warning/critical status, emoji, and Discord embed color. Supports inverted mode (low = bad).
• dashboard(metrics) — Multi-metric compact display. Full mode with sparklines, or compact mode for 20x4 LCDs and AI agent context windows.

Target Audiences

• Homelab / DevOps (existing)
• LCD / OLED hackers (16x2, 20x4, SSD1306 128x64)
• DIY / IoT makers (sensor dashboards)
• AI agent builders (compact data viz in system prompts)

Stats

• 16 new tests (28 total passing)
• ~150 lines of new functionality
• Zero new dependencies