docs: fix documentation relative links and normalize test file naming

[achahid19]

Description:

Fix broken documentation links and align test file references with repository conventions.

• Remove non-existent sections from CONTRIBUTING.md table of contents
• Fix relative links in testing.md
• Rename test files from test_*.py to *_test.py
• Convert Windows-style paths to Unix-style paths in documentation references
• Fix path referencing the sdk_developers folder

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Related issue(s):

Fixes #1706

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Notes for reviewer:

This PR only updates documentation links, path formatting, and test file naming references. No functional code changes.

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Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[coderabbitai]

Walkthrough

Fixes broken documentation links and normalizes test file path references across docs; removes two outdated Table of Contents entries in CONTRIBUTING.md and adds a changelog entry documenting these documentation updates.

Changes

Cohort / File(s)	Summary
Documentation Link Fixes docs/sdk_developers/testing.md	Replaced Windows-style backslash paths with cross-platform relative paths, updated links to CONTRIBUTING.md and docs/sdk_developers/signing.md, and standardized example test file references and link formatting.
Changelog and TOC Updates CHANGELOG.md, CONTRIBUTING.md	Added changelog entry describing the link/path fixes and removed two entries ("Community & Support" and "Common Issues") from the CONTRIBUTING.md table of contents.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The PR title clearly and concisely summarizes the main changes: fixing documentation relative links and normalizing test file naming conventions.
Description check	✅ Passed	The PR description is directly related to the changeset, detailing the specific documentation and link fixes made, including removal of TOC entries, relative link corrections, path normalization, and test file naming alignment.
Linked Issues check	✅ Passed	The PR successfully addresses all core objectives from issue #1706: removed non-existent sections from CONTRIBUTING.md TOC, fixed relative links and Windows-style paths in testing.md, and normalized test file references to repository conventions.
Out of Scope Changes check	✅ Passed	All changes are scoped to documentation and path references as specified in issue #1706; no functional code or unrelated modifications are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

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

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[tech0priyanshu]

I checked the relative path, but I’m still getting a 404 for all testing.md

[tech0priyanshu]

Thanks @achahid19 for taking the time and putting in the ef

[achahid19]

Hi @tech0priyanshu
Locally all relative paths are working as expected. However, after testing them from the GitHub interface, none of them seem to point to the correct file paths. I also noticed that links on CONTRIBUTING.md that work on the main branch don’t resolve properly there either.
I’ll investigate this further tomorrow.

will wait results tomorrow

[achahid19]

Hi @tech0priyanshu @exploreriii, I looked into the issue and here’s what I found:

The relative paths I added work correctly locally and when browsing my fork branch fix_docs However, in the Pull Request UI, GitHub doesn’t reliably resolve relative links for PRs coming from a fork, so the links lose their branch context and return 404 errors.

Since the referenced files already exist in the repository, would you prefer that I replace these with absolute links pointing to the main branch instead?

Let me know what approach you’d like me to follow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@           Coverage Diff           @@
##             main    #1730   +/-   ##
=======================================
  Coverage   93.24%   93.24%           
=======================================
  Files         141      141           
  Lines        9051     9051           
=======================================
  Hits         8440     8440           
  Misses        611      611           

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