implement modular backend setup scripts, new frontend components, and expanded server services

scripts/build/build_from_source.sh

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+#!/usr/bin/env bash
+#
+# Local AI Image Generator - Compile backends from source
+# For Linux systems with GLIBC < 2.38 or macOS systems that need a local Metal build.
+#
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="$(dirname "$(dirname "$SCRIPT_DIR")")"
+APP_DIR="$ROOT_DIR/app"
+PLATFORM="$(uname -s)"
+if [ "$PLATFORM" = "Darwin" ]; then
+    BACKEND_DIR="$APP_DIR/backend/mac"
+else
+    BACKEND_DIR="$APP_DIR/backend/linux"
+fi
+BUILD_DIR="$APP_DIR/tools/build-sd"
+JOBS="$(getconf _NPROCESSORS_ONLN 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)"
+
+# Pinned release tag
+PINNED_TAG="master-685-19bdfe2"
+
+echo "=== Local AI Image Generator - Build from Source ==="
+echo "Target directories:"
+echo "  CPU Backend   -> $BACKEND_DIR/cpu"
+echo "  Vulkan Backend -> $BACKEND_DIR/vulkan"
+echo ""
+
+# 1. Clone stable-diffusion.cpp
+if [ ! -d "$BUILD_DIR" ]; then
+    echo "Cloning stable-diffusion.cpp..."
+    git clone https://github.com/leejet/stable-diffusion.cpp.git "$BUILD_DIR"
+else
+    echo "Using existing stable-diffusion.cpp directory."
+fi
+
+cd "$BUILD_DIR"
+echo "Checking out pinned tag $PINNED_TAG..."
+git fetch origin
+git checkout -f "$PINNED_TAG"
+git submodule update --init --recursive
+
+if [ "$PLATFORM" = "Darwin" ]; then
+    echo ""
+    echo "=== Building macOS Metal Backend ==="
+    rm -rf build-metal && mkdir build-metal && cd build-metal
+    cmake .. -DSD_METAL=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+    cmake --build . --config Release -j"$JOBS"
+
+    echo "Copying macOS Metal backend..."
+    mkdir -p "$BACKEND_DIR"
+    if [ -f bin/sd-server ]; then
+        cp bin/sd-server "$BACKEND_DIR/sd"
+    elif [ -f bin/sd ]; then
+        cp bin/sd "$BACKEND_DIR/sd"
+    else
+        echo "ERROR: bin/sd-server or bin/sd was not found!"
+        exit 1
+    fi
+    find . -name "*.dylib" -exec cp {} "$BACKEND_DIR/" \; 2>/dev/null || true
+    chmod +x "$BACKEND_DIR/sd"
+    echo ""
+    echo "=== macOS Metal build completed successfully! ==="
+    exit 0
+fi
+
+# 2. Build CPU Backend
+echo ""
+echo "=== Building CPU Backend ==="
+rm -rf build-cpu && mkdir build-cpu && cd build-cpu
+cmake .. -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+cmake --build . --config Release -j"$JOBS"
+
+echo "Copying CPU binaries..."
+mkdir -p "$BACKEND_DIR/cpu"
+if [ -f bin/sd-server ]; then
+    cp bin/sd-server "$BACKEND_DIR/cpu/sd-cpu"
+    cp bin/sd-server "$BACKEND_DIR/cpu/sd-server-cpu"
+else
+    echo "ERROR: bin/sd-server was not found!"
+    exit 1
+fi
+if [ -f bin/sd ]; then
+    cp bin/sd "$BACKEND_DIR/cpu/sd-cli-cpu"
+elif [ -f bin/sd-cli ]; then
+    cp bin/sd-cli "$BACKEND_DIR/cpu/sd-cli-cpu"
+fi
+# Find and copy libstable-diffusion.so (might be in bin/ or in build root)
+SO_PATH=$(find . -name "libstable-diffusion.so" | head -n 1)
+if [ -n "$SO_PATH" ]; then
+    cp "$SO_PATH" "$BACKEND_DIR/cpu/"
+    echo "Copied libstable-diffusion.so to CPU directory."
+    chmod +x "$BACKEND_DIR/cpu/sd-cpu" "$BACKEND_DIR/cpu/sd-server-cpu" 2>/dev/null || true
+    if [ -f "$BACKEND_DIR/cpu/sd-cli-cpu" ]; then
+        chmod +x "$BACKEND_DIR/cpu/sd-cli-cpu" 2>/dev/null || true
+    fi
+else
+    echo "WARNING: libstable-diffusion.so not found for CPU build!"
+fi
+
+# 3. Build Vulkan Backend
+cd "$BUILD_DIR"
+echo ""
+echo "=== Building Vulkan Backend ==="
+if rm -rf build-vulkan && mkdir build-vulkan && cd build-vulkan && \
+   cmake .. -DSD_VULKAN=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release && \
+   cmake --build . --config Release -j"$JOBS"; then
+
+    echo "Copying Vulkan binaries..."
+    mkdir -p "$BACKEND_DIR/vulkan"
+    if [ -f bin/sd-server ]; then
+        cp bin/sd-server "$BACKEND_DIR/vulkan/sd-vulkan"
+        cp bin/sd-server "$BACKEND_DIR/vulkan/sd-server-vulkan"
+    else
+        echo "ERROR: bin/sd-server was not found!"
+        exit 1
+    fi
+    if [ -f bin/sd ]; then
+        cp bin/sd "$BACKEND_DIR/vulkan/sd-cli-vulkan"
+    elif [ -f bin/sd-cli ]; then
+        cp bin/sd-cli "$BACKEND_DIR/vulkan/sd-cli-vulkan"
+    fi
+    SO_PATH_VK=$(find . -name "libstable-diffusion.so" | head -n 1)
+    if [ -n "$SO_PATH_VK" ]; then
+        cp "$SO_PATH_VK" "$BACKEND_DIR/vulkan/"
+        echo "Copied libstable-diffusion.so to Vulkan directory."
+    else
+        echo "WARNING: libstable-diffusion.so not found for Vulkan build!"
+    fi
+    chmod +x "$BACKEND_DIR/vulkan/sd-vulkan" "$BACKEND_DIR/vulkan/sd-server-vulkan" 2>/dev/null || true
+    if [ -f "$BACKEND_DIR/vulkan/sd-cli-vulkan" ]; then
+        chmod +x "$BACKEND_DIR/vulkan/sd-cli-vulkan" 2>/dev/null || true
+    fi
+else
+    echo "WARNING: Vulkan backend build failed. Bypassing Vulkan backend compilation..."
+fi
+cd "$BUILD_DIR"
+echo ""
+echo "=== Building CUDA Backend ==="
+rm -rf build-cuda && mkdir build-cuda && cd build-cuda
+cmake .. -DSD_CUDA=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release -DGGML_CUDA_FORCE_MMQ=ON
+cmake --build . --config Release -j"$JOBS"
+
+echo "Copying CUDA binaries..."
+mkdir -p "$BACKEND_DIR/cuda"
+if [ -f bin/sd-server ]; then
+    cp bin/sd-server "$BACKEND_DIR/cuda/sd-cuda"
+    cp bin/sd-server "$BACKEND_DIR/cuda/sd-server-cuda"
+else
+    echo "ERROR: bin/sd-server was not found!"
+    exit 1
+fi
+if [ -f bin/sd ]; then
+    cp bin/sd "$BACKEND_DIR/cuda/sd-cli-cuda"
+elif [ -f bin/sd-cli ]; then
+    cp bin/sd-cli "$BACKEND_DIR/cuda/sd-cli-cuda"
+fi
+SO_PATH_CUDA=$(find . -name "libstable-diffusion.so" | head -n 1)
+if [ -n "$SO_PATH_CUDA" ]; then
+    cp "$SO_PATH_CUDA" "$BACKEND_DIR/cuda/"
+    echo "Copied libstable-diffusion.so to CUDA directory."
+    chmod +x "$BACKEND_DIR/cuda/sd-cuda" "$BACKEND_DIR/cuda/sd-server-cuda" 2>/dev/null || true
+    if [ -f "$BACKEND_DIR/cuda/sd-cli-cuda" ]; then
+        chmod +x "$BACKEND_DIR/cuda/sd-cli-cuda" 2>/dev/null || true
+    fi
+else
+    echo "WARNING: libstable-diffusion.so not found for CUDA build!"
+fi
+
+echo ""
+echo "=== Build from source completed successfully! ==="