perf(ci): avoid redundant build in Docker

Co-authored-by: Cursor <cursoragent@cursor.com>

Dockerfile

@@ -1,41 +1,10 @@
-# Stage 1: Build Angular and server
-FROM oven/bun:1-alpine AS builder
-WORKDIR /app
-
-COPY package*.json bun.lock* ./
-RUN bun install --frozen-lockfile
-
-COPY . .
-# Non-secret env for build; pass build args if needed
-ARG STRAVA_CLIENT_ID=
-ARG STRAVA_REDIRECT_URI=
-ARG RIOT_REGION=eun1
-ARG RIOT_SUMMONER_NAME_LOL=
-ARG RIOT_SUMMONER_NAME_TFT=
-ARG RIOT_TAG_LINE=
-ARG FACEIT_USER_ID=
-ARG ROCKET_LEAGUE_PLATFORM=steam
-ARG ROCKET_LEAGUE_USERNAME=
-
-ENV STRAVA_CLIENT_ID=$STRAVA_CLIENT_ID \
-    STRAVA_REDIRECT_URI=$STRAVA_REDIRECT_URI \
-    RIOT_REGION=$RIOT_REGION \
-    RIOT_SUMMONER_NAME_LOL=$RIOT_SUMMONER_NAME_LOL \
-    RIOT_SUMMONER_NAME_TFT=$RIOT_SUMMONER_NAME_TFT \
-    RIOT_TAG_LINE=$RIOT_TAG_LINE \
-    FACEIT_USER_ID=$FACEIT_USER_ID \
-    ROCKET_LEAGUE_PLATFORM=$ROCKET_LEAGUE_PLATFORM \
-    ROCKET_LEAGUE_USERNAME=$ROCKET_LEAGUE_USERNAME
-
-RUN bun run build:ssr
-
-# Stage 2: Runtime
+# Uses pre-built dist/ from Drone build step (no build in Docker)
 FROM oven/bun:1-alpine
 WORKDIR /app
 
-COPY --from=builder /app/dist ./dist
-COPY --from=builder /app/scripts ./scripts
-COPY --from=builder /app/package*.json bun.lock* ./
+COPY dist ./dist
+COPY scripts ./scripts
+COPY package.json bun.lock* ./
 RUN bun install --frozen-lockfile --production
 
 EXPOSE 4000