Restructures documentation and improves theme

[BraCR10]

1. Improves documentation structure by grouping related topics into sections for better navigation.
2. Enables folding in the sidebar to enhance navigation.

Closes #26

Note: Note: Please let me know if you have a different opinion about the section names, file placement, or whether this should be split into more sections.

Summary by CodeRabbit

• New Features

  • Enabled collapsible section folding in HTML output for improved navigation.
  • Added support for applying a custom CSS theme for visual customization.

• Style

  • Enhanced sidebar styling to improve visual hierarchy and readability of section titles.

• Documentation

  • Reorganized documentation into clear, categorized sections for easier discovery and navigation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1f8b2100-7a52-407a-91b4-ae0035999ce7

📥 Commits

Reviewing files that changed from the base of the PR and between 305ed52 and b316358.

📒 Files selected for processing (1)

• book.toml

🚧 Files skipped from review as they are similar to previous changes (1)

• book.toml

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Walkthrough

Enabled HTML folding and added a custom CSS theme; reorganized the documentation sidebar into structured top-level sections with nested items, without changing link targets.

Changes

Cohort / File(s)	Summary
Configuration & Theme book.toml, theme/custom.css	Added additional-css = ["theme/custom.css"] and [output.html.fold] enable = true, level = 0 to book.toml; added theme/custom.css with sidebar styling (white bold main section titles, light-gray bold expandable items, enforced with !important).
Documentation Structure src/SUMMARY.md	Reorganized the flat sidebar into named sections (Introduction, Orders, Trading, Disputes, Communication, Admin Operations, Session Management, Protocol Reference) and nested items; link targets unchanged.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰
I hopped through toml and stitched some style,
Folded pages tidy, stacked them with a smile.
Sidebar titles gleam in bold delight,
Chapters curl up cozy, all snug and right.
A rabbit cheers — documentation takes flight.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main changes: reorganizing documentation into sections and improving the theme styling with CSS and folding configuration.
Linked Issues check	✅ Passed	The pull request fulfills issue #26 by reorganizing SUMMARY.md into collapsible sections and enabling folding in book.toml configuration.
Out of Scope Changes check	✅ Passed	All changes directly support the linked objective: SUMMARY.md restructuring addresses content organization, book.toml enables folding, and custom.css improves theme styling for the reorganized sections.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

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• Create PR with unit tests
• Post copyable unit tests in a comment

📝 Coding Plan

• Generate coding plan for human review comments

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[Catrya]

Hi @BraCR10, i tested it locally but there are no sections in the doc, i looks like the currently site, without sections

[BraCR10]

Hello, Locally it works

I ran:

just init

just serve