ISSUE (per Gemini consultation):
express-ejs-layouts was wrapping HTMX AJAX responses in full layout
Caused crashes because HTMX endpoints don't pass layout variables
FIX:
Added middleware to detect HX-Request header
Sets res.locals.layout = false for HTMX requests
HTMX endpoints now return raw HTML fragments
This fixes all 5 admin modules:
- Servers Matrix
- Player Management
- Grace Period (with real DB query)
- Audit Log
- Role Diagnostics
Credit: Gemini consultation - HTMX middleware pattern
Signed-off-by: Claude (Chronicler #57) <claude@firefrostgaming.com>
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