[Phase 1] Initial Restructuring

[folkwest]

Pages that were consolidated (merged from multiple sources)
New page > Source pages merged
get-started.md > Extracted from start-here.md
scheduling-jobs.md > scheduling-jobs.md + checkpoint.md
gpus.md > gpu_start.md + nvidia_ngc.md + ollama_setup.md
scheduling-jobs.md > scheduling-jobs.md + monitoring-jobs.md
storage.md > gui.md + cli.md + boto3.md
getting-started.md > start.md + ood.md
interactive-apps.md > jupyter.md + vscode.md + matlab.md + rstudio.md
vscode.md > vscode.md + vsc-code-server.md + vsc-proxy-jump.md

New placeholder pages (didn't exist before)
New page > Purpose
gpus.md > H200-specific GPU content

All old pages are now in docs/_old/ with their original directory structure preserved:

docs/_old/compute/, docs/_old/contribute/, docs/_old/data-commons/, docs/_old/gpus/, docs/_old/hyak101/, docs/_old/klone/, docs/_old/lolo/, docs/_old/ood/, docs/_old/setup/, docs/_old/storage/, docs/_old/tillicum/, docs/_old/tools/
Plus the root-level files: account-activation.md, account-creation.md, FAQ.md, glossary.md, join-group.md, resources.md, setup.md, tutorial.md

The docs/ folder now only contains the new structure:
index.md
(home)
docs/getting-started/
docs/systems/
docs/guides/
docs/tutorials/
docs/resources/

Docusaurus config updated with exclude: ['_old/**'] so the old files won't be processed or create duplicate page conflicts.

Full New Structure
Home

Getting Started (shared)
├── Join a Group
├── Account Creation
├── Account Activation
└── SSH & Login
Systems
├── Klone (HPC)
│ ├── Get Started (login nodes, arbiter, hyakalloc)
│ ├── Storage (gscratch, quotas)
│ ├── Scheduling Jobs (accounts, partitions, checkpoint)
│ └── GPUs
├── Tillicum (GPU)
│ ├── Get Started (billing, QoS, project allocations)
│ ├── Storage (gpfs, project dirs)
│ ├── Scheduling Jobs (QoS model, no checkpoint)
│ └── GPUs (H200-specific)
├── Kopah (S3 Storage)
│ ├── Overview
│ └── Storage (GUI / CLI / boto3)
└── Lolo (Tape Archive)
├── Overview
└── Storage
Guides
├── Software Environments
│ ├── Modules (one page, with Klone vs Tillicum tabs/callouts)
│ ├── Conda & Python (one canonical page)
│ └── Containers (Apptainer)
├── Open OnDemand
│ ├── Getting Started
│ ├── Interactive Apps
│ └── Interactive Jobs
├── Data Transfer
│ ├── Globus
│ ├── Cyberduck
│ └── SCP & Rsync
└── Applications
├── Jupyter
├── VS Code
├── R & RStudio
└── MATLAB
Tutorials
├── Linux Basics
├── Slurm
├── Containers
└── Jupyter Notebooks
Resources
├── FAQ
├── Glossary
├── Contribution Guide
└── Data Commons