Initial commit: InstaLPEQ linear phase EQ plugin

Full-featured linear phase EQ with interactive graphical curve display.
FIR-based processing (8192-tap), 8 parametric bands, multi-platform
CI/CD (Windows/macOS/Linux), InstaDrums visual style.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CMakeLists.txt

@@ -0,0 +1,63 @@
+cmake_minimum_required(VERSION 3.22)
+project(InstaLPEQ 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(InstaLPEQ
+    COMPANY_NAME "InstaLPEQ"
+    IS_SYNTH FALSE
+    NEEDS_MIDI_INPUT FALSE
+    NEEDS_MIDI_OUTPUT FALSE
+    PLUGIN_MANUFACTURER_CODE Inst
+    PLUGIN_CODE Ilpe
+    FORMATS VST3 AU LV2 Standalone
+    LV2URI "https://github.com/hariel1985/InstaLPEQ"
+    PRODUCT_NAME "InstaLPEQ"
+    COPY_PLUGIN_AFTER_BUILD FALSE
+)
+
+juce_generate_juce_header(InstaLPEQ)
+
+juce_add_binary_data(InstaLPEQData SOURCES
+    Resources/Rajdhani-Regular.ttf
+    Resources/Rajdhani-Medium.ttf
+    Resources/Rajdhani-Bold.ttf
+)
+
+target_sources(InstaLPEQ
+    PRIVATE
+        Source/PluginProcessor.cpp
+        Source/PluginEditor.cpp
+        Source/LookAndFeel.cpp
+        Source/EQCurveDisplay.cpp
+        Source/FIREngine.cpp
+        Source/NodeParameterPanel.cpp
+)
+
+target_compile_definitions(InstaLPEQ
+    PUBLIC
+        JUCE_WEB_BROWSER=0
+        JUCE_USE_CURL=0
+        JUCE_VST3_CAN_REPLACE_VST2=0
+)
+
+target_link_libraries(InstaLPEQ
+    PRIVATE
+        InstaLPEQData
+        juce::juce_audio_basics
+        juce::juce_audio_devices
+        juce::juce_audio_formats
+        juce::juce_audio_processors
+        juce::juce_audio_utils
+        juce::juce_core
+        juce::juce_dsp
+        juce::juce_graphics
+        juce::juce_gui_basics
+        juce::juce_gui_extra
+    PUBLIC
+        juce::juce_recommended_config_flags
+        juce::juce_recommended_warning_flags
+)