search: hyphenated titles and stopwords no longer empty BOOLEAN results

[t0ma5]

Summary

• BOOLEAN search required every token. Deleting hyphens glued co-working into coworking, which FULLTEXT never indexed (it stores co + working), so pasting a hyphenated title returned no rows.
• +and* / +in* failed the same way: InnoDB's default stopword list does not store those words, but BOOLEAN truncation still required them.
• Hyphens and other punctuation are now split like the index, and unindexed tokens (too short or stopwords) are skipped. Quoted phrases drop those tokens too.

Test plan

• php tests/models/search.php — 58 passed, including hyphenated title paste (Co-working space in Aville) and token co-working
• Existing pins still hold: multi-word AND, prefix recall, -term exclusion, quoted phrase, below-min-length LIKE fallback
• Paste a live listing title that contains a hyphen and and/in into public search; that listing is in the result set

Made with Cursor

[navjottomer]

Can't ship this. ftIsStopword() hardcodes an English list, so on a German or Dutch install in, was, am get dropped from both BOOLEAN and LIKE — real search words, silently lost.

The hyphen half of the diagnosis is correct and worth fixing. The stopword half needs to be a filter, or read from the server's actual stopword table, not baked into core.

Open an issue first next time so we can agree the approach before you write it.