rename OTAMan → SIMple (v2.3.0)

- package pysim_otaman_server → pysim_simple_server; distribution and
  console script pysim-otaman-server → pysim-simple-server
- PWA branding SIMple: title, header, manifest, help EN/RU, GitHub links
- localStorage keys otaman_* → simple_* (clean break, no migration)
- export filenames simple-cards.json / simple-custom-files.json
- service worker cache simple-v189
- README/docs/setup/start scripts updated; no 'otaman' left in the tree

start.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -e
 
-# pysim-otaman-server start script
+# pysim-simple-server start script
 # Starts the server, preferring the venv if it exists.
 # Auto-detects PC/SC reader if available.
 
@@ -21,21 +21,21 @@ if command -v pcscd > /dev/null 2>&1; then
 fi
 
 SERVER=""
-if [ -f "$VENV_DIR/bin/pysim-otaman-server" ]; then
-    SERVER="$VENV_DIR/bin/pysim-otaman-server"
-elif command -v pysim-otaman-server &> /dev/null; then
-    SERVER="pysim-otaman-server"
-elif [ -f "$SCRIPT_DIR/pysim_otaman_server/__main__.py" ]; then
-    echo "Starting pysim-otaman-server from source on http://127.0.0.1:8080"
-    cd "$SCRIPT_DIR" && python3 -m pysim_otaman_server --http-port 8080 $READER_ARGS
+if [ -f "$VENV_DIR/bin/pysim-simple-server" ]; then
+    SERVER="$VENV_DIR/bin/pysim-simple-server"
+elif command -v pysim-simple-server &> /dev/null; then
+    SERVER="pysim-simple-server"
+elif [ -f "$SCRIPT_DIR/pysim_simple_server/__main__.py" ]; then
+    echo "Starting pysim-simple-server from source on http://127.0.0.1:8080"
+    cd "$SCRIPT_DIR" && python3 -m pysim_simple_server --http-port 8080 $READER_ARGS
     exit $?
 else
-    echo "Error: pysim-otaman-server not installed."
+    echo "Error: pysim-simple-server not installed."
     echo "Run setup.sh first or install manually:"
-    echo "  pip install pysim-otaman-server"
+    echo "  pip install pysim-simple-server"
     exit 1
 fi
 
-echo "Starting pysim-otaman-server on http://127.0.0.1:8080"
+echo "Starting pysim-simple-server on http://127.0.0.1:8080"
 echo "Press Ctrl+C to stop."
 $SERVER --http-port 8080 $READER_ARGS