Refactor build system and implement complete renderer system

- Split monolithic build.rs into modular async generators
- Add renderer override system with type-safe dispatch
- Implement command template macro for consistent command definitions
- Add proc-macro crates for command and renderer systems
- Reorganize directory structure for better separation of concerns
- Update documentation to reflect new architecture

4 files changed, 44 insertions, 13 deletions

diff --git a/templates/_registry.rs.template b/templates/_commands.rs.template
index 957484c..84d2db4 100644
--- a/templates/_registry.rs.template
+++ b/templates/_commands.rs.template
@@ -8,18 +8,25 @@ pub async fn jv_cmd_process_node(
     args: Vec<String>,
     ctx: JVCommandContext,
     renderer_override: String
-) -> Result<crate::systems::cmd::renderer::JVRenderResult, crate::systems::cmd::errors::CmdProcessError> {
+) -> Result<crate::systems::render::renderer::JVRenderResult, crate::systems::cmd::errors::CmdProcessError> {
     match node {
 // PROCESS
 // -- TEMPLATE START --
         // Command `<<KEY>>`
         "<<NODE_NAME>>" => {
-            return crate::<<COMMAND_TYPE>>::process_with_renderer_flag(
-                args,
-                ctx,
-                renderer_override
-            )
-            .await;
+            if renderer_override == "default" {
+                return crate::<<COMMAND_TYPE>>::process_to_render_system(
+                    args, ctx,
+                )
+                .await;
+            } else {
+                return crate::<<COMMAND_TYPE>>::process_to_renderer_override(
+                    args,
+                    ctx,
+                    renderer_override,
+                )
+                .await;
+            }
         }
 // -- TEMPLATE END --
         _ => {}
diff --git a/templates/_renderers.rs.template b/templates/_override_renderer_dispatcher.rs.template
index 37f0f1b..64d2f40 100644
--- a/templates/_renderers.rs.template
+++ b/templates/_override_renderer_dispatcher.rs.template
@@ -1,16 +1,13 @@
-match renderer_str {
+match renderer_override {
 // MATCH
 // -- TEMPLATE START --
     "<<NAME>>" => {
-        Self::process_with_renderer::<
-            RendererType
-        >(args, ctx)
-        .await
+        RendererType::render(&concrete_data).await
     }
 // -- TEMPLATE END --
     _ => {
         return Err(CmdProcessError::Render(CmdRenderError::RendererNotFound(
-            renderer_str.to_string(),
+            renderer_override.to_string(),
         )));
     }
 }
diff --git a/templates/_override_renderer_entry.rs.template b/templates/_override_renderer_entry.rs.template
new file mode 100644
index 0000000..06b2c35
--- /dev/null
+++ b/templates/_override_renderer_entry.rs.template
@@ -0,0 +1,13 @@
+// Auto generated by build.rs
+match type_name.as_str() {
+// MATCHING
+// -- TEMPLATE START --
+    "JVOutputTypeName" => {
+        let concrete_data = data
+            .downcast::<JVOutputType>()
+            .map_err(|_| CmdProcessError::DowncastFailed)?;
+        include!("../render/_override_renderer_dispatcher.rs")
+    }
+    _ => return Err(CmdProcessError::NoMatchingCommand),
+// -- TEMPLATE END --
+}
diff --git a/templates/_specific_renderer_matching.rs.template b/templates/_specific_renderer_matching.rs.template
new file mode 100644
index 0000000..9b3765f
--- /dev/null
+++ b/templates/_specific_renderer_matching.rs.template
@@ -0,0 +1,14 @@
+match type_name_str {
+// MATCHING
+// -- TEMPLATE START --
+    "OutputTypeName" => {
+        RendererType::render(
+            &data
+                .downcast::<OutputType>()
+                .unwrap(),
+        )
+        .await
+    }
+// -- TEMPLATE END --
+    _ => Err(CmdRenderError::RendererNotFound(type_name)),
+}