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/doc/realearn/modules/ROOT/pages/sources/reaper/midi-device-changes.adoc

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+= Source "MIDI device changes"
+
+This source emits a value of 100% whenever any MIDI device is connected and 0% whenever any MIDI device is disconnected.
+You can map this to the REAPER action "Reset all MIDI devices" to achieve true plug and play of MIDI devices (provided the corresponding device has been enabled at least once in REAPER's MIDI device preferences).

plugin-reaper-relearn/doc/realearn/modules/ROOT/pages/sources/reaper/realearn-parameter.adoc

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+= Source "ReaLearn parameter"
+
+This source fires whenever a selected xref:further-concepts/compartment.adoc#compartment-parameter[] changes its value.
+
+One of many ways to use this is to create macro parameters which control multiple parameters of multiple other plug-ins.
+
+CAUTION: This is one of the sources that can't participate in rendering.
+So it's important to write down automation *before* rendering.

plugin-reaper-relearn/doc/realearn/modules/ROOT/pages/sources/reaper/realearn-unit-start.adoc

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+= Source "ReaLearn unit start"
+
+This source fires (emits a value of 100%) when ReaLearn starts.
+It can be used to execute an actions or restore certain states on REAPER startup or project load.

plugin-reaper-relearn/doc/realearn/modules/ROOT/pages/sources/reaper/speech.adoc

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+= Source "Speech"
+
+This source works for xref:key-concepts.adoc#feedback[] only.
+It uses the native Windows or macOS text-to-speech engine to speak out any feedback value.
+
+== Troubleshooting
+
+If you don't hear anything, check the xref:user-interface/main-panel/bottom-section.adoc[] if unit-wide feedback is currently off.
+If yes, maybe xref:user-interface/main-panel/menu-bar.adoc#send-feedback-only-if-track-armed[] is enabled but your track is not armed.
+
+Also keep in mind that ReaLearn only resends feedback when it changed. Therefore, the speech source will only say something when the target value actually changes.

plugin-reaper-relearn/doc/realearn/modules/ROOT/pages/sources/reaper/timer.adoc

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+= Source "Timer"
+
+This source fires (emits a value of 100%) repeatedly every _n_ milliseconds.