Speed up the app, run production build, remove chunk ink, start App.jsx split

Performance:
- Lazy-load pages, docx, and mammoth (initial JS 1,298 KB -> ~290 KB)
- Gzip responses and cache hashed assets for a year
- Memoize DrawCanvas strokes so ink isn't redrawn on every render
- Precompute whole-Bible search index and defer the query while typing
- Reload once if a lazy chunk is missing after a deploy

Deployment:
- setup.sh builds and runs one production server on APP_PORT (default
  5173); --dev keeps the old Vite dev setup
- Session cookie uses secure: 'auto' so login works behind any proxy

Chunk editor:
- Remove the Draw layout, Ink Notes panel, and ink in HTML export
  (existing inkStrokes data is left in saved projects)

Refactor:
- Move module-level helpers out of App.jsx into src/utils/*
- Extract Bible reader state and logic into hooks/useBibleReader

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -12,7 +12,7 @@ A self-hosted Bible study tool with notes, projects, and user accounts.
 
 ---
 
-## Quick Start (Development)
+## Quick Start
 
 ```bash
 git clone https://github.com/nmemmert/study-bible-project.git
@@ -20,24 +20,26 @@ cd study-bible-project
 bash setup.sh
 ```
 
-`setup.sh` installs dependencies, finds a free port, and starts both servers:
+`setup.sh` installs dependencies, builds the optimized frontend, and runs one
+production server (frontend + API) on **http://localhost:5173**. Set `APP_PORT`
+to use a different port. If the build fails, the previously running server is
+left untouched. `bash restart.sh` pulls the latest code and does the same.
 
-| Server | Default URL |
-|--------|-------------|
-| API (Express) | http://localhost:3001 |
-| Frontend (Vite) | http://localhost:5173 |
-
-**Stop the servers:**
+**Stop / logs:**
 ```bash
-kill $(cat .api.pid) $(cat .vite.pid)
+kill $(cat .api.pid)
+tail -f .api.log
 ```
 
-**View logs:**
+### Development mode (hot reload)
+
 ```bash
-tail -f .api.log    # API server
-tail -f .vite.log   # Vite dev server
+bash setup.sh --dev
 ```
 
+Starts the API on http://localhost:3001 and the Vite dev server on
+http://localhost:5173. Dev mode is much slower, so don't use it for real users.
+
 ---
 
 ## Production Install (Ubuntu / systemd)