GH#881: fix: standardize GitHub owner slug to Ultimate-Multisite

[superdav42]

Summary

Fixes the incorrect Multisite-Ultimate owner slug used throughout the codebase — it should be the canonical Ultimate-Multisite (matching the actual GitHub organization).

Files changed:

• README.md — 14 URL occurrences corrected (badges, installation links, contributor links)
• inc/class-wp-ultimo.php — 2 occurrences in GitHub API update-check URLs (functional fix)
• .wiki/Enhance-Integration.md — 4 occurrences in discussion/support links

The wrong slug was causing broken badges, incorrect git clone URLs in docs, and — critically — failed GitHub API calls when checking for plugin updates (get_latest_release() was hitting a non-existent org slug).

The admin notice in ultimate-multisite.php already used the correct slug; this PR aligns the rest of the codebase to match.

Testing

• Verified zero remaining occurrences: grep -rn "Multisite-Ultimate" --include="*.md" --include="*.php" returns nothing
• PHP change is a string literal replacement with no logic impact; PHPCS/PHPStan clean

Resolves #881

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 129a24d3-c6c2-43f1-bf6b-803e72bd86b4

📥 Commits

Reviewing files that changed from the base of the PR and between d1d7bef and 7008763.

📒 Files selected for processing (3)

• .wiki/Enhance-Integration.md
• README.md
• inc/class-wp-ultimo.php

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/auto-20260416-015830-gh881

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[superdav42]

Merge Summary

Issue #881 — Review followup: PR #878 — inconsistent GitHub owner slug

Outcome: B — Premise correct, fix implemented.

What was done:

• Verified the bot's finding: README.md used Multisite-Ultimate (wrong) while ultimate-multisite.php used Ultimate-Multisite (correct)
• Fixed all 21 occurrences across 3 files: README.md (14), inc/class-wp-ultimo.php (2), .wiki/Enhance-Integration.md (4)
• The PHP fix is functional — the wrong slug was causing failed GitHub API calls during plugin update checks

Verification: grep -rn 'Multisite-Ultimate' --include='*.md' --include='*.php' returns 0 results.

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aidevops.sh v3.8.56 plugin for OpenCode v1.4.6 with claude-sonnet-4-6 spent 2m on this as a headless worker. Overall, 12s since this issue was created.

[github-actions]

🔨 Build Complete - Ready for Testing!

📦 Download Build Artifact (Recommended)

Download the zip build, upload to WordPress and test:

• Build: ultimate-multisite
• ⬇️ Download from GitHub Actions
• ⬇️ Download without Github Account (nightly.link)

🌐 Test in WordPress Playground (Very Experimental)

Click the link below to instantly test this PR in your browser - no installation needed!
Playground support for multisite is very limitied, hopefully it will get better in the future.

🚀 Launch in Playground

Login credentials: admin / password

[github-actions]

Performance Test Results

Performance test results for 3c40dd9 are in 🛎️!

Note: the numbers in parentheses show the difference to the previous (baseline) test run. Differences below 2% or 0.5 in absolute values are not shown.

URL: /

Run	DB Queries	Memory	Before Template	Template	WP Total	LCP	TTFB	LCP - TTFB
0	41	37.78 MB	822.50 ms	152.50 ms	1090.50 ms	2036.00 ms (-116.00 ms / -6% )	1943.00 ms (-125.90 ms / -6% )	90.80 ms (+4.90 ms / +5% )
1	56	49.03 MB	976.00 ms	149.50 ms (+4.00 ms / +3% )	1126.50 ms	2164.00 ms	2082.95 ms	82.20 ms (+2.95 ms / +4% )