It's called Test
WebFetch converts to Markdown, making it difficult to diagnose accurately. I'm going to manually inspect the DOM of the live page with a real browser.
Used 5 tools That's right. All the main.js · buttons are loaded properly, and one figure is placed in the body. When you click on the share button, you will see what actually happens on the console.
Claude_in_Chrome: javascript tool enabled This is a key diagnosis: check the SEO head and body structure of the live page accurately.
Claude_in_Chrome: javascript tool enabled Complete diagnosis. SEO is mostly normal (1 h1 · canonical · desc · hreflang 7 · JSON-LD Article) but we found 3 real bugs:

og: image relative path (/LuaLoka/...) No thumbnails when sharing with → Kakao and Facebook (absolute path required) Can't see toast ("address copied") Appears unresponsive when → sharing/copying button is pressed Image has been placed, but the body paragraph separation is weak Fix it. First, fix the og: image to the absolute path.
Modified head.php +2 -0 The image in JSON-LD is also corrected to the absolute path (post.php).
1 read file, 1 edited file Now fix the share button — if navigator.share fails, fall back to the address copy, and make sure the toast is visible. Check the main.js.
1 read file, 1 edited file Improves image placement — allows paragraphs to be recognized and distributed even when written without blank lines.

1 read, 1 retrieved, 1 edited After grammar check, create a zip with the changed front files.
PowerShell Enabled Everything is fine, recreate the zip.
PowerShell Enabled Complete the zip. On the live page, make sure the featured image is displayed at the top and so on for the last time.
Claude_in_Chrome: javascript tool enabled OK, I checked the actual page myself, diagnosed it correctly, and fixed the bug.

Diagnostic results (live page self-test) Item Actual Status Share button main.js · Button all loaded normally. "Copy address" worked (copied to clipboard), but the "copied" notification didn't appear to work. "Share" was unresponsive when native share failed on desktop The photo layout is actually arranged as a figure in the body (the representative image is at the top, the middle of the text that the body is displayed). However, when used without empty lines, the variance was weak. H1/H2 SEO H1 1 (title)✓, canonical · description · hreflang 7 · JSON-LD Article ✓ All OK. However, og: image is a relative path, so the thumbnail shared with KakaoTalk and Facebook did not appear (a real bug). Fixed (4 files) og: image · JSON-LD image → absolute path correction (SNS sharing thumbnail normalization) ⭐ "Share" button — automatically copy address when native share fails + notification (always responsive) Can always show "Copied" notifications
Note: The body of the test article seemed a little odd because it was the "checklist" text I gave you. If you write a paragraph in empty lines like a real article, the image will naturally enter between the paragraphs.
Files to upload (4 only) This time there are no DB/admin changes, so you only need to overwrite these 4 files:
LuaLoka/inc/head.php LuaLoka/pages/post.php LuaLoka/inc/functions.php LuaLoka/asset/js/main.js If you're confused, you can overwrite the entire LuaLoka folder by unzipping the new zip (LuaLoka_deploy_20260608.zip) (config/db.php is not in the zip, so it's not necessary to rerun install.php).

After posting, tap "Copy Address" in the post details to see if a notification pops up or a link to KakaoTalk to see if a thumbnail pops up!