feat(analytics): build-time bake + telemetry depth (#336)

Bake PostHog + Sentry into the published Docker image (SNAPOTTER_ANALYTICS
build arg, codegen script). Delete entire consent system. Move event emission
to BullMQ worker. Add cross-tier identity stitching, Sentry performance
tracing on both tiers, frontend funnel events. Fix stateful regex bug.

86 files changed, 1593 insertions(+), 3747 deletions(-)

docker/Dockerfile

@@ -59,6 +59,13 @@ COPY packages/shared/src ./packages/shared/src
 COPY apps/web/src ./apps/web/src
 COPY apps/web/public ./apps/web/public
 
+# Bake analytics config into the shared package before building the frontend.
+# The published image ships with analytics ON; self-builders can override:
+#   docker compose build --build-arg SNAPOTTER_ANALYTICS=off
+ARG SNAPOTTER_ANALYTICS=on
+COPY scripts/bake-analytics.mjs ./scripts/
+RUN node scripts/bake-analytics.mjs ${SNAPOTTER_ANALYTICS}
+
 # Build only the web frontend (API runs from TS source via tsx)
 RUN --mount=type=cache,id=turbo-cache,target=/app/.turbo \
     pnpm --filter @snapotter/web build

docker/docker-compose-gpu.yml

@@ -10,6 +10,8 @@ services:
     build:
       context: ..
       dockerfile: docker/Dockerfile
+      args:
+        SNAPOTTER_ANALYTICS: "on"
     image: snapotter/snapotter:latest
     container_name: SnapOtter
     ports:

docker/docker-compose.yml

@@ -9,6 +9,8 @@ services:
     build:
       context: ..
       dockerfile: docker/Dockerfile
+      args:
+        SNAPOTTER_ANALYTICS: "on"
     image: snapotter/snapotter:latest
     container_name: SnapOtter
     ports: