feat: ship phase 1 surface area (v0.2.0)

- primora CLI + @primora/mcp server over generated client
- auth users admin panel, mobile bottom nav
- release workflow: GHCR images, compiled binaries, npm tarballs
- fix gzip Content-Length truncation, nginx upstream re-resolution

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

apps/backend/internal/middleware/compression.go

@@ -22,6 +22,9 @@ type gzipWriter struct {
 }
 
 func (g *gzipWriter) Write(data []byte) (int, error) {
+	// Compressed output never matches a Content-Length set by a handler —
+	// drop it so net/http falls back to chunked encoding.
+	g.Header().Del("Content-Length")
 	return g.writer.Write(data)
 }