docs(gpu): Purge comment bloat from GPU headers

Removed redundant and obvious comments from 7 GPU headers:
- post_process_helper.h: binding comments, stale UniformsSequenceParams note
- shader_composer.h: verbose Compose/VerifyIncludes descriptions
- uniform_helper.h: obvious method comments
- effect.h: redundant render/resize comments
- gpu.h: verbose struct/header comments, GPU perf placeholder
- sdf_effect.h: obvious method comments
- sequence.h: duplicate header, obvious API comments

Kept only non-obvious context (binding conventions, headless mode notes).

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/src/gpu/shader_composer.h b/src/gpu/shader_composer.h
index d0972f2..90e1ec1 100644
--- a/src/gpu/shader_composer.h
+++ b/src/gpu/shader_composer.h
@@ -12,19 +12,16 @@ class ShaderComposer {
  public:
   static ShaderComposer& Get();
 
-  // Register a snippet (e.g. "common_math", "sdf_primitives")
   void RegisterSnippet(const std::string& name, const std::string& code);
 
   using CompositionMap = std::map<std::string, std::string>;
 
-  // Assemble a final shader string by prepending required snippets
-  // and recursively resolving #include "snippet_name" directives.
-  // Optional substitutions: map "placeholder_name" -> "actual_snippet_name"
+  // Resolves #include directives recursively
+  // substitutions: map "placeholder_name" -> "actual_snippet_name"
   std::string Compose(const std::vector<std::string>& dependencies,
                       const std::string& main_code,
                       const CompositionMap& substitutions = {});
 
-  // Verify all #include directives reference registered snippets
   void VerifyIncludes() const;
 
  private: