Reorganize top-level directories with clearer naming convention

app -> app-desktop-macos, presets -> app-presets, server -> remote-server,
daw-config-reaper -> osc-config-daw, plugin-reaper-realearn -> plugin-reaper-relearn.
Updated run.py and presets.py path references accordingly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

plugin-reaper-relearn/resources/api/luau/midi_script_source_runtime.luau

@@ -0,0 +1,80 @@
+--!strict
+
+--- Contains types for building ReaLearn MIDI scripts in Lua.
+local module = {}
+
+--- Type of the `y` variable in MIDI scripts, which represents the input value of the MIDI script.
+---
+--- This input value is usually generated by the "Target" and/or the "Glue" section.
+export type InputValue = OffInputValue | NumericInputValue | TextInputValue | ComplexInputValue
+
+--- Whenever the input value is `nil`, ReaLearn wants you to "switch off" feedback.
+---
+--- Meaning of "switch off" depending on the type of feedback element:
+---
+--- - LED: Switch LED off
+--- - Motor fader: Tear it completely down
+--- - Text display: Clear all characters
+export type OffInputValue = nil
+
+--- A simple numeric value.
+---
+--- ReaLearn sends this if the feedback type in the "Glue" section is set to "Numeric feedback".
+---
+--- Currently, this should always be a value within the unit interval, that is a value between 0.0 (= 0%)
+--- and 1.0 (= 100%).
+export type NumericInputValue = number
+
+--- A chunk of text.
+---
+--- ReaLearn sends this if the feedback type in the "Glue" section is set to "Textual feedback".
+---
+--- This is obviously most useful for text displays. But it can also be used for LED. When you design
+--- a virtual control scheme, you could for example declare that the text "blinking" should make the LED blink.
+export type TextInputValue = string
+
+--- A value that could be anything, from a simple number to a complex table.
+---
+--- ReaLearn sends this if the feedback type in the "Glue" section is set to "Dynamic feedback".
+export type ComplexInputValue = any
+
+--- Provides access to some data that might come in useful to create the outgoing MIDI messages.
+export type Context = {
+    feedback_event: FeedbackEvent
+}
+
+--- More data about the feedback event which triggered the execution of this MIDI script.
+export type FeedbackEvent = {
+    --- Color as set in the "Glue" section.
+    ---
+    --- Either the default color (= `nil`) or an RGB color.
+    color: RgbColor?,
+    --- Background color as set in the "Glue" section.
+    background_color: RgbColor?,
+}
+
+--- Color in the RGB color system.
+export type RgbColor = {
+    r: number,
+    g: number,
+    b: number,
+}
+
+--- You are supposed to return a value structured like that.
+export type Output = {
+    --- Feedback address.
+    ---
+    --- Each distinct feedback element on the controller (LED, motor fader, etc.) should get a unique feedback address.
+    --- If you get this value wrong or don't set it at all, you might experience weird feedback behavior, e.g. LEDs that 
+    --- stay on or switch off when they shouldn't.
+    address: number?,
+    --- A list MIDI messages to be sent to the controller.
+    messages: { MidiMessage }
+}
+
+--- Array containing the raw bytes of a MIDI message.
+---
+--- You can express any kind of MIDI message with that.
+export type MidiMessage = { number }
+
+return module