chore: standardize markdownlint and yamllint configs

[gvatsal60]

This PR standardizes the markdownlint and yamllint configurations across the repo:

Changes:

• .markdownlint.json: Standardized to use MD013 with line_length: 999 and MD033 with script as an allowed element
• .yamllint.yaml: Added/ensured consistent line-length: max: 200 configuration

This ensures consistency across all repositories in the gvatsal60 org.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 files)

• .markdownlint.json

Notes

• Change is limited to .markdownlint.json; the .yamllint.yaml line-length: max: 200 item described in the PR body was already present in the base branch and is not part of this diff.
• The file is valid JSON and both MD013.line_length and MD033.allowed_elements are valid markdownlint configuration keys. markdownlint-cli2 v0.23.3 (wired in .pre-commit-config.yaml) falls back to .markdownlint.json, so the config is picked up.
• No Markdown file in the repo currently contains inline HTML, so the new MD033 allowance is inert today. It does allow raw <script> in future docs; worth keeping in mind if README content ever comes from untrusted sources.
• No existing Kilo summary or inline comments were found for this PR, and no new issues were identified, so no inline comments were posted.

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