feat: Implement spectool & specview; refactor coding style; update docs

This commit introduces new tools for spectrogram manipulation and visualization, establishes a consistent coding style, and updates project documentation.

Key changes include:

- **Spectrogram Tools:

  - : A command-line utility for analyzing WAV/MP3 files into custom  spectrogram format and playing back these spectrograms via the synth engine.

  - : A command-line tool for visualizing  spectrogram files as ASCII art in the console.

- **Coding Style Enforcement:

  - Added a  configuration file enforcing LLVM-based style with 2-space indentation, no tabs, and an 80-column line limit.

  - Renamed all C++ source files from  to  for project consistency.

  - Applied automatic formatting using
exit across the entire codebase.

- **Documentation & Workflow:

  - Created  to define a commit policy requiring tests to pass before committing.

  - Updated  with instructions for building and using  and , and referenced .

  - Updated  and  to reflect the new tools, audio architecture decisions (real-time additive synthesis, double-buffering for dynamic updates, WAV/MP3 support), coding style, and development workflow.

- **Build System:

  - Modified  to:

    - Include new targets for  and  under the  option.

    - Update source file extensions to .

    - Add a new end-to-end test for  to the  suite.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/audio/synth.h b/src/audio/synth.h
index 17770a7..eadde10 100644
--- a/src/audio/synth.h
+++ b/src/audio/synth.h
@@ -6,20 +6,20 @@
 #define MAX_VOICES 16
 
 struct Spectrogram {
-    float* spectral_data_a;
-    float* spectral_data_b;
-    int num_frames;
+  float *spectral_data_a;
+  float *spectral_data_b;
+  int num_frames;
 };
 
 void synth_init();
 void synth_shutdown();
 
-int synth_register_spectrogram(const Spectrogram* spec);
+int synth_register_spectrogram(const Spectrogram *spec);
 void synth_unregister_spectrogram(int spectrogram_id);
 
-float* synth_begin_update(int spectrogram_id);
+float *synth_begin_update(int spectrogram_id);
 void synth_commit_update(int spectrogram_id);
 
 void synth_trigger_voice(int spectrogram_id, float volume, float pan);
-void synth_render(float* output_buffer, int num_frames);
+void synth_render(float *output_buffer, int num_frames);
 int synth_get_active_voice_count();