feat: add Jasmin assembly integration for crypto acceleration

- Integrated `zupt_mac_verify_ct` in `zupt_decrypt_buffer()` to replace C XOR loop for HMAC-SHA256
- Integrated `zupt_ct_select_32` in `zupt_mlkem768_decaps()` to replace C `cmov()` for FO transformation
- Added `include/zupt_jasmin.h` with extern declarations and ABI docs
- Added `#ifdef ZUPT_USE_JASMIN` guards with clean C fallbacks in `zupt_crypto.c` and `zupt_mlkem.c`
- Makefile now auto-detects `jasmin/*.s`, assembles and links with `-DZUPT_USE_JASMIN`

Closes #3

install.sh

@@ -1,27 +0,0 @@
-#!/usr/bin/env bash
-# Fast Installer for Zupt - GNU/Linux
-
-set -e
-
-echo "🔧 Installing Zupt..."
-
-# Create temporary directory
-TMP_DIR=$(mktemp -d)
-
-# Clone and build
-git clone https://github.com/cristiancmoises/zupt.git "$TMP_DIR/zupt"
-cd "$TMP_DIR/zupt"
-
-make clean
-make
-
-# Install
-sudo make install
-
-echo "✅ Zupt successfully installed to /usr/local/bin/zupt"
-echo "🔒 You can now run: zupt"
-
-# Cleanup
-cd ~
-rm -rf "$TMP_DIR"
-echo "🧹 Cleanup completed"