Add converted marimo notebooks (batch 1)

[ktaletsk]

Summary

• repair the marimo reactive graph and replace the broken global trigger with one rendered button per W&B example
• use a real setup cell, a rendered login form, and actionable authentication errors
• stream public tutorial assets with fsspec instead of cloning the repository
• embed the YouTube tutorial and logged MP4, add theme-aware W&B logos, and restore the 3D example
• correct media handling for video bytes, 44.1 kHz audio, HTML, OBJ data, and RGB point-cloud colors
• declare the complete sandbox dependencies, including fsspec[http] for large/Git-LFS assets and plotly for Matplotlib logging

This PR is intentionally stacked on wandbify_skills / #647.

Validation

• uvx marimo check marimo/convert/log-almost-anything-with-w-b-media/log_almost_anything_with_w_b_media.py
• live local and Molab runs: 36 cells, zero cell errors, all 11 controls rendered and idle, GitHub remote storage visible, 1,000 CSV rows loaded
• W&B offline smoke tests in both environments successfully serialized the image, MP4, 44.1 kHz audio, table, HTML, OBJ, point cloud, histogram, and the exact interactive Matplotlib plot path

No online W&B runs were created during validation.

[github-actions]

▶️ Run the marimo notebook(s) in this PR

molab launches any public marimo notebook on GitHub in a hosted environment — no local setup required.

Notebook	molab
marimo/convert/huggingface-wandb/huggingface_wandb.py
marimo/convert/log-almost-anything-with-w-b-media/log_almost_anything_with_w_b_media.py

Links track the head of fix_log_anything_marimo.