fix(MAT-273): remove Skyvern (archived) + fix CI test failures

- Remove Skyvern service + DB from docker-compose.yml
- Remove cron/browser_executor.py and pipelines/steps/skyvern.py
- Remove browser_scrape from cron executor dispatch
- Update tests to reflect Skyvern removal
- Fix test_needs_query_rewrite false positive ('das' is a valid trigger)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -25,8 +25,6 @@ services:
       - MEMORY_SERVICE_TOKEN
       - PORTAL_URL
       - BOT_API_KEY
-      - SKYVERN_BASE_URL=http://skyvern:8000
-      - SKYVERN_API_KEY
     ports:
       - "9100:9100"
     volumes:
@@ -84,54 +82,6 @@ services:
       timeout: 5s
       retries: 3
 
-  skyvern:
-    image: public.ecr.aws/skyvern/skyvern:latest
-    restart: unless-stopped
-    environment:
-      DATABASE_STRING: postgresql+psycopg://skyvern:${SKYVERN_DB_PASSWORD:-skyvern}@skyvern-db:5432/skyvern
-      ENABLE_OPENAI_COMPATIBLE: "true"
-      OPENAI_COMPATIBLE_API_KEY: ${LITELLM_API_KEY}
-      OPENAI_COMPATIBLE_API_BASE: ${LITELLM_BASE_URL}
-      OPENAI_COMPATIBLE_MODEL_NAME: gpt-4o
-      OPENAI_COMPATIBLE_SUPPORTS_VISION: "true"
-      LLM_KEY: OPENAI_COMPATIBLE
-      SECONDARY_LLM_KEY: OPENAI_COMPATIBLE
-      BROWSER_TYPE: chromium-headful
-      ENABLE_CODE_BLOCK: "true"
-      ENV: local
-      PORT: "8000"
-      ALLOWED_ORIGINS: '["http://localhost:8000"]'
-    volumes:
-      - skyvern-artifacts:/data/artifacts
-      - skyvern-videos:/data/videos
-    depends_on:
-      skyvern-db:
-        condition: service_healthy
-    healthcheck:
-      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/api/v1/heartbeat')"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 60s
-
-  skyvern-db:
-    image: postgres:14-alpine
-    restart: unless-stopped
-    environment:
-      POSTGRES_USER: skyvern
-      POSTGRES_PASSWORD: ${SKYVERN_DB_PASSWORD:-skyvern}
-      POSTGRES_DB: skyvern
-    volumes:
-      - skyvern-pgdata:/var/lib/postgresql/data
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U skyvern -d skyvern"]
-      interval: 5s
-      timeout: 3s
-      retries: 5
-
 volumes:
   bot-data:
   memory-pgdata:
-  skyvern-pgdata:
-  skyvern-artifacts:
-  skyvern-videos: