feat: Update local agent documentation to reflect changes in user_id and session_id handling; add marketing strategy document; update skills-lock.json with new Remotion best practices; update website subproject commit.

.claude/skills/remotion-best-practices/rules/sfx.md

@@ -0,0 +1,30 @@
+---
+name: sfx
+description: Including sound effects
+metadata:
+  tags: sfx, sound, effect, audio
+---
+
+To include a sound effect, use the `<Audio>` tag:
+
+```tsx
+import { Audio } from "@remotion/sfx";
+
+<Audio src={"https://remotion.media/whoosh.wav"} />;
+```
+
+The following sound effects are available:
+
+- `https://remotion.media/whoosh.wav`
+- `https://remotion.media/whip.wav`
+- `https://remotion.media/page-turn.wav`
+- `https://remotion.media/switch.wav`
+- `https://remotion.media/mouse-click.wav`
+- `https://remotion.media/shutter-modern.wav`
+- `https://remotion.media/shutter-old.wav`
+- `https://remotion.media/ding.wav`
+- `https://remotion.media/bruh.wav`
+- `https://remotion.media/vine-boom.wav`
+- `https://remotion.media/windows-xp-error.wav`
+
+For more sound effects, search the internet. A good resource is https://github.com/kapishdima/soundcn/tree/main/assets.