feat(bangs): add bang counter dashboard widget

Adds a new "bangs" module with a dashboard widget that tracks household
bang events. The widget shows the total count, a configurable recent-bang
list, and an "Add Bang" button that accepts a backdatable date.

On submission, a full celebration sequence fires: screen flash, widget
shake, count pop animation, synthesized firework sound (Web Audio API),
50 full-screen emoji particles via portal, canvas-confetti star bursts,
side cannons, and a timed sequence of 7 firework bursts.

- New bang_events table (migration 0017)
- canvas-confetti dependency for fireworks/confetti effects
- CSS keyframe animations: shake, countPop, emojiFloat
- Fixes pre-existing Drizzle snapshot chain collision (0007/0008)
- Adds OpenPlantBook env vars to compose.yaml

package.json

@@ -52,6 +52,7 @@
     "@playwright/test": "^1.59.1",
     "@release-it/conventional-changelog": "^11.0.1",
     "@tailwindcss/postcss": "^4.2.4",
+    "@types/canvas-confetti": "^1.9.0",
     "@types/node": "^22.9.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
@@ -79,6 +80,7 @@
     "@fullcalendar/interaction": "^6.1.20",
     "@fullcalendar/react": "^6.1.20",
     "@fullcalendar/timegrid": "^6.1.20",
+    "canvas-confetti": "^1.9.4",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",