Initial release — InstaShadow mastering compressor v1.0

Dual-stage compressor (optical + VCA) with output transformer saturation.
- Port-Hamiltonian T4B opto-cell model with implicit trapezoidal integration
- Feed-forward VCA with 7 ratios, 6 attack/release presets, Dual release mode
- 3 transformer types (Nickel/Iron/Steel) with 4x oversampled waveshaping
- Analog-style needle VU meters, horizontal GR meters
- Sidechain HPF, stereo link, independent section bypass
- Full state save/restore, CI/CD for Windows/macOS/Linux

CMakeLists.txt

@@ -0,0 +1,64 @@
+cmake_minimum_required(VERSION 3.22)
+project(InstaShadow VERSION 1.0.0)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../JUCE ${CMAKE_CURRENT_BINARY_DIR}/JUCE)
+
+juce_add_plugin(InstaShadow
+    COMPANY_NAME "InstaShadow"
+    IS_SYNTH FALSE
+    NEEDS_MIDI_INPUT FALSE
+    NEEDS_MIDI_OUTPUT FALSE
+    PLUGIN_MANUFACTURER_CODE Inst
+    PLUGIN_CODE Ishd
+    FORMATS VST3 AU LV2
+    LV2URI "https://github.com/hariel1985/InstaShadow"
+    PRODUCT_NAME "InstaShadow"
+    COPY_PLUGIN_AFTER_BUILD FALSE
+)
+
+juce_generate_juce_header(InstaShadow)
+
+juce_add_binary_data(InstaShadowData SOURCES
+    Resources/Rajdhani-Regular.ttf
+    Resources/Rajdhani-Medium.ttf
+    Resources/Rajdhani-Bold.ttf
+)
+
+target_sources(InstaShadow
+    PRIVATE
+        Source/PluginProcessor.cpp
+        Source/PluginEditor.cpp
+        Source/LookAndFeel.cpp
+        Source/CompressorEngine.cpp
+        Source/OpticalCell.cpp
+        Source/VCACompressor.cpp
+        Source/TransformerSaturation.cpp
+        Source/OpticalPanel.cpp
+        Source/DiscretePanel.cpp
+        Source/TransformerPanel.cpp
+        Source/OutputPanel.cpp
+)
+
+target_compile_definitions(InstaShadow
+    PUBLIC
+        JUCE_WEB_BROWSER=0
+        JUCE_USE_CURL=0
+        JUCE_VST3_CAN_REPLACE_VST2=0
+)
+
+target_link_libraries(InstaShadow
+    PRIVATE
+        InstaShadowData
+        juce::juce_audio_basics
+        juce::juce_audio_devices
+        juce::juce_audio_formats
+        juce::juce_audio_processors
+        juce::juce_audio_utils
+        juce::juce_dsp
+    PUBLIC
+        juce::juce_recommended_config_flags
+        juce::juce_recommended_warning_flags
+)