✨ feat(matrix-clock-bot): add Matrix bot for time tracking

- Add Docker build configuration with npm overrides for matrix-sdk
- Update port from 3317 to 3318 to avoid conflict with Zitare bot
- Add tsconfig.build.json for production builds
- Add clock-bot service to docker-compose.macmini.yml
- Bot supports timers, alarms, and world clocks via Matrix chat

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

services/matrix-clock-bot/Dockerfile

@@ -1,25 +1,47 @@
-FROM node:20-alpine
+# Build stage
+FROM node:20-alpine AS builder
 
 WORKDIR /app
 
-# Install pnpm
-RUN npm install -g pnpm
+# Copy package files (exclude pnpm-lock.yaml to use npm)
+COPY package.json ./
 
-# Copy package files
-COPY package.json pnpm-lock.yaml* ./
-
-# Install dependencies
-RUN pnpm install --frozen-lockfile || pnpm install
+# Install dependencies using npm (more compatible with standard tooling)
+RUN npm install
 
 # Copy source
 COPY . .
 
-# Build
-RUN pnpm build
+# Build using TypeScript
+RUN rm -rf dist && npx tsc -p tsconfig.build.json
 
-# Create data directory
+# Production stage
+FROM node:20-alpine AS runner
+
+WORKDIR /app
+
+# Create data directory for bot storage
 RUN mkdir -p /app/data
 
-EXPOSE 3317
+# Copy package files
+COPY package.json ./
+
+# Install production dependencies only
+RUN npm install --omit=dev
+
+# Copy built files
+COPY --from=builder /app/dist ./dist
+
+# Create non-root user
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nestjs
+RUN chown -R nestjs:nodejs /app
+USER nestjs
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+  CMD wget --no-verbose --tries=1 --spider http://localhost:3318/health || exit 1
+
+EXPOSE 3318
 
 CMD ["node", "dist/main.js"]