M0 scaffold — Python addon + Rust sidecar

Kodi addon (plugin.video.torttube) shell with Cargo workspace for the
rustypipe-backed sidecar binary. No working extraction yet — addon.xml
parses, main.py is a notification stub, sidecar's main.rs prints scaffold
banner. See MILESTONES.md for M1..M6.

License: GPL-3.0-or-later (matches rustypipe + NewPipeExtractor).

addon/plugin.video.torttube/addon.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<addon id="plugin.video.torttube"
+       name="torttube"
+       version="0.0.1"
+       provider-name="Sulkta-Coop">
+  <requires>
+    <import addon="xbmc.python" version="3.0.0"/>
+    <import addon="script.module.requests" version="2.22.0"/>
+    <import addon="inputstream.adaptive" version="2.0.0" optional="true"/>
+  </requires>
+  <extension point="xbmc.python.pluginsource" library="main.py">
+    <provides>video</provides>
+  </extension>
+  <extension point="xbmc.addon.metadata">
+    <summary lang="en_gb">YouTube via RustyPipe + SponsorBlock</summary>
+    <description lang="en_gb">Browse, search, and play YouTube videos without an account. Backed by a native RustyPipe sidecar binary. SponsorBlock segments are skipped automatically.</description>
+    <license>GPL-3.0-or-later</license>
+    <source>http://192.168.0.5:3001/Sulkta-Coop/torttube</source>
+    <platform>linux</platform>
+    <language>en</language>
+  </extension>
+</addon>

addon/plugin.video.torttube/main.py

@@ -0,0 +1,24 @@
+# torttube — Kodi YouTube addon
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""M0 scaffold entry point. Sidecar handoff lands in M1+."""
+
+import sys
+
+import xbmcgui
+import xbmcplugin
+
+_HANDLE = int(sys.argv[1]) if len(sys.argv) > 1 else -1
+
+
+def main() -> None:
+    xbmcgui.Dialog().notification(
+        "torttube",
+        "M0 scaffold — playback wires up in M3",
+        xbmcgui.NOTIFICATION_INFO,
+        2500,
+    )
+    xbmcplugin.endOfDirectory(_HANDLE)
+
+
+if __name__ == "__main__":
+    main()

addon/plugin.video.torttube/resources/language/resource.language.en_gb/strings.po

@@ -0,0 +1,7 @@
+# torttube English (en_GB) strings
+# SPDX-License-Identifier: GPL-3.0-or-later
+msgid ""
+msgstr ""
+"Project-Id-Version: torttube\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Language: en_gb\n"

addon/plugin.video.torttube/resources/settings.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<settings version="1">
+  <section id="torttube">
+    <category id="general" label="General">
+      <group id="placeholder">
+        <!-- M2+ — SponsorBlock category toggles, sidecar path override, etc. -->
+      </group>
+    </category>
+  </section>
+</settings>