Preserve Stobe NPC list state

[RANGROO]

Summary

• persist Stobe NPC search, letter, profile, checkbox, player-faction, sort, embed, and page state in the visible URL after AJAX refreshes
• trust the server-rendered page when a requested page is clamped
• retain the current served page for refreshes that do not explicitly reset pagination
• keep stale/aborted responses from replacing newer list state

Validation

• PHP lint: ui/stobenpcs.php in source and deployed runtime
• exact source/runtime SHA-256 match for the deployed file
• HTTP 200 with server page metadata present
• browser: oversized page clamped from 999999 to 1 in the visible URL
• browser: search and pf=1 persisted through AJAX and reload; no console errors
• browser: desktop and 390x844 narrow viewport inspected

Local deployment

Deployed commit 5e55706 file ui/stobenpcs.php to /var/www/html/StobeServer in WSL distro DwemerAI4Skyrim3. Existing runtime configuration and data were preserved.