kyleandornith-1.5-35b-a3b
b93b7d5816
Add pdf_doc/pdf_page tables plus PDFEntry, PDFKey, PutPDF (one transaction, old pages deleted first), GetPDF (page-ordered, updates last_hit) and TouchPDF (304 revalidation moves only fetched_at). PDF documents count toward Size() and are evicted whole by oldest use; PDFH/PDFM counters added. evict() now breaks last_hit ties by rowid so same-second inserts evict in insertion order. Co-Authored-By: ornith-1.5-35b-a3b <ornith-1.5-35b-a3b@llama.cpp.invalid>