Use official emdash with sed-based post-build patch

Instead of cloning emdash-patch repo, clone official emdash and apply
4-line sed patch to built virtual_astro_middleware.mjs. This avoids
workspace:* dependency issues that were breaking the backend.

The sed patch fixes apiSuccess() wrapper mismatch for media browser
and image upload in the visual editor toolbar.

Dockerfile

@@ -4,22 +4,22 @@ RUN apk add --no-cache python3 make g++ sqlite git
 
 WORKDIR /app
 
-# Clone full emdash monorepo (with patch applied)
+# 1. Clone official emdash repo
-RUN git clone --depth=1 https://git.moreminimore.com/kunthawat/emdash-patch-imageupload.git emdash
+RUN git clone --depth=1 https://github.com/emdash-cms/emdash.git emdash
 
-# Clone blog template source
+# 2. Clone blog template source
 RUN git clone --depth=1 https://git.moreminimore.com/kunthawat/emdash-blog-template.git blog-template
 
 WORKDIR /app/emdash
 
-# Add blog template as workspace package and install all deps
+# Add blog template as workspace package
 RUN cp -r /app/blog-template packages/blog-template
+
 RUN corepack enable && corepack prepare pnpm@9.0.0 --activate
-# Enable hoisting so packages are accessible at top-level node_modules
 RUN echo "node-linker=hoisted" >> .npmrc
 RUN pnpm install
 
-# Build all packages including the blog template
+# Build all packages
 RUN cd packages/core && pnpm build
 RUN cd packages/auth && pnpm build
 RUN cd packages/blocks && pnpm install && pnpm build
@@ -28,7 +28,7 @@ RUN cd packages/plugins/audit-log && pnpm build
 RUN cd packages/gutenberg-to-portable-text && pnpm install && pnpm build
 RUN cd packages/blog-template && rm -rf dist && pnpm build
 
-# Final stage - run from emdash workspace so symlinks resolve correctly
+# Final stage
 FROM deps
 
 WORKDIR /app/emdash
@@ -41,7 +41,16 @@ COPY --from=0 /app/emdash/packages/blog-template/dist ./dist
 
 EXPOSE 4321
 
-# Copy and adapt entrypoint to work from /app/emdash
+# Apply patch AFTER build - sed-based replacement in virtual_astro_middleware.mjs
+COPY --from=0 /app/emdash/packages/core/src/visual-editing/toolbar.ts /tmp-toolbar.ts
+RUN cd /app/emdash && \
+    sed -i 's/var items = data\.items || \[\];/var items = (data.data \&\& data.data.items) || data.items || [];/' ./dist/server/virtual_astro_middleware.mjs && \
+    sed -i 's/if (!data\.item) throw new Error("Upload failed");/if (!data.data || !data.data.item) throw new Error("Upload failed: no item returned");/' ./dist/server/virtual_astro_middleware.mjs && \
+    sed -i 's/var item = data\.item;/var item = data.data.item;/' ./dist/server/virtual_astro_middleware.mjs && \
+    sed -i 's/selectMediaItem(item, annotation, element, imgEl);/return selectMediaItem(item, annotation, element, imgEl);/' ./dist/server/virtual_astro_middleware.mjs && \
+    echo "Patches applied"
+
+# Copy and adapt entrypoint
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh && \
     sed -i 's|cd /app|cd /app/emdash|g' /entrypoint.sh && \
@@ -52,10 +61,10 @@ RUN chmod +x /entrypoint.sh && \
 COPY --from=0 /app/emdash/packages/blog-template/seed ./seed
 RUN mkdir -p /app/emdash/uploads
 
-# Copy audit-log plugin to node_modules (it's imported by virtual_astro_middleware.mjs)
+# Copy audit-log plugin
 COPY --from=0 /app/emdash/packages/plugins/audit-log ./node_modules/@emdash-cms/plugin-audit-log
 
-# Copy gutenberg-to-portable-text (nested in core's node_modules, needed by search)
+# Copy gutenberg-to-portable-text
 COPY --from=0 /app/emdash/packages/core/node_modules/@emdash-cms/gutenberg-to-portable-text ./node_modules/@emdash-cms/gutenberg-to-portable-text
 
 ENTRYPOINT ["/entrypoint.sh"]