Add initial schema for entries and settings tables

- Created 'entries' table to track time entries with fields for date, start time, end time, pause minutes, location, and entry type.
- Created 'settings' table to store key-value pairs for application settings with an updated timestamp.

Dockerfile

@@ -16,8 +16,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install only production dependencies
-# Using npm ci for reproducible builds
-RUN npm ci --only=production && \
+RUN npm install --omit=dev && \
     npm cache clean --force
 
 # ============================================
@@ -30,26 +29,17 @@ WORKDIR /app
 # Install dumb-init for proper signal handling
 RUN apk add --no-cache dumb-init
 
-# Create non-root user for security
-RUN addgroup -g 1001 -S nodejs && \
-    adduser -S nodejs -u 1001
-
 # Copy dependencies from builder stage
 COPY --from=builder /app/node_modules ./node_modules
 
 # Copy application files
-COPY --chown=nodejs:nodejs server.js ./
-COPY --chown=nodejs:nodejs package*.json ./
-COPY --chown=nodejs:nodejs src ./src
-COPY --chown=nodejs:nodejs db ./db
-COPY --chown=nodejs:nodejs public ./public
+COPY server.js ./
+COPY schema.sql ./
+COPY package*.json ./
+COPY public ./public
 
-# Create data directory for SQLite database with proper permissions
-RUN mkdir -p /app/db && \
-    chown -R nodejs:nodejs /app/db
-
-# Switch to non-root user
-USER nodejs
+# Create data directory for SQLite database
+RUN mkdir -p /app/db
 
 # Expose the application port
 EXPOSE 3000