Restructures intro page aligning sidebar sections

[steam-bell-92]

Addressed Issues:

Fixes #1261
Fixes #1262

Screenshots/Recordings:

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I have used the following AI models and tools: I manually changed the code but used AI for testing and running the changes made

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• My PR addresses a single issue, fixes a single bug or makes a single improvement.
• My code follows the project's code style and conventions
• If applicable, I have made corresponding changes or additions to the documentation
• If applicable, I have made corresponding changes or additions to tests
• My changes generate no new warnings or errors
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Summary by CodeRabbit

• Documentation
  • Consolidated backend docs into a single “Backend” section and added a Rust Backend API entry alongside expanded Python Backend link labels for clearer navigation.
  • Reorganized OpenAPI reference content by relocating error response schemas within the API specification to improve structure and readability.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 719f13e and 97e69f2.

📒 Files selected for processing (1)

• docs/index.md

✅ Files skipped from review due to trivial changes (1)

• docs/index.md

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Walkthrough

Relocates four OpenAPI ErrorResponse schemas within the OpenAPI components and updates the docs index to consolidate the Rust backend API link under a unified "Backend" navigation list.

Changes

Docs + OpenAPI Reorganization

Layer / File(s)	Summary
OpenAPI: relocate error schemas docs/backend/backend_python/openapi.json	Reintroduced app__schemas__folders__ErrorResponse, app__schemas__face_clusters__ErrorResponse, app__schemas__images__ErrorResponse, and app__schemas__user_preferences__ErrorResponse under components.schemas (properties: success, message, error, with required constraints).
Docs: consolidate Backend links docs/index.md	Changed "Backend Python" header to "Backend" and added ./backend/backend_rust/api as "Rust Backend API" inside the same unordered list; removed standalone "Backend Rust" section.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• AOSSIE-Org/PictoPy#462: Also adjusts docs/index.md navigation structure and backend link groupings.

Suggested labels

Documentation

Suggested reviewers

• rahulharpal1603

Poem

🐰 I hopped through lines of docs and schemes,
Nesting Rust where Python beams—
Four errors moved to tidy space,
One Backend list, a cleaner place.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: restructuring the introduction page and aligning sidebar sections, which directly matches the core objective of the PR.
Linked Issues check	✅ Passed	The PR addresses both linked issues: #1261 (alphabetical ordering of E* schemas in OpenAPI spec) and #1262 (sidebar reorganization to match Introduction page hierarchy).
Out of Scope Changes check	✅ Passed	All changes are within scope: docs/index.md restructures the sidebar to match Introduction page hierarchy, and OpenAPI.json reorders schemas alphabetically as required.

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[Copilot]

Pull request overview

This PR updates the documentation Introduction page layout/content to better reflect the intended docs hierarchy between Backend (Python/Rust) and Frontend.

Changes:

• Removes the dedicated “Backend Rust” column markup from docs/index.md.
• Moves the Rust backend API link into the “Backend Python” list.
• Adjusts the intro page’s column structure (but currently leaves the HTML column nesting unbalanced).

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[steam-bell-92]

Addressed Issues:

Fixes #1261

Screenshots/Recordings:

AI Usage Disclosure:

• This PR does not contain AI-generated code at all.
• This PR contains AI-generated code. I have read the AI Usage Policy and this PR complies with this policy. I have tested the code locally and I am responsible for it.

I have used the following AI models and tools: Yes I have used AI tools as finding particular sections was tedious

Checklist

• My PR addresses a single issue, fixes a single bug or makes a single improvement.
• My code follows the project's code style and conventions
• If applicable, I have made corresponding changes or additions to the documentation
• If applicable, I have made corresponding changes or additions to tests
• My changes generate no new warnings or errors
• I have joined the Discord server and I will share a link to this PR with the project maintainers there
• I have read the Contribution Guidelines
• Once I submit my PR, CodeRabbit AI will automatically review it and I will address CodeRabbit's comments.
• I have filled this PR template completely and carefully, and I understand that my PR may be closed without review otherwise.

Summary by CodeRabbit

• Documentation
  • Reorganized documentation navigation by consolidating backend API documentation references into the primary backend links list for improved organization.

[steam-bell-92]

Have made one more commit solving 2nd issue assigned to me

[rohan-pandeyy]

@steam-bell-92 thanks for opening the PR!

From the attached screenshots, I noticed that both “Python API” and “Rust API” have been renamed to just “API”. That makes navigation a bit confusing, since it’s no longer clear which backend each page belongs to.

As I mentioned in the issue comment, the hyperlinks should retain the full names similar to the sidebar's:

Backend's rows being:
Python Backend API
Python Backend Database
Python Backend Directory Structure
Python Backend Image Processing
Rust Backend API

These should be used as the hyperlink names for better clarity and in same order consistency.

[steam-bell-92]

@rohan-pandeyy sorry for that confusion I created. That pic was after my 1st commit but in 2nd commit I fixed the naming n order part

Here's preview of markdown after 2nd commit:

[rohan-pandeyy]

Thank you for your contribution @steam-bell-92! 😄