fix(cv): harden document parsing

Upgrade and hash-lock upload-facing parser dependencies, reject resource-heavy or mismatched inputs, remove unsafe backend binary fallbacks, and prevent internal parser failures from leaking to users.

tools/summarizer/requirements.txt

@@ -1,12 +1,13 @@
-fastapi==0.115.12
+fastapi==0.141.1
+starlette==1.6.0
 uvicorn[standard]==0.34.0
 transformers==4.48.3
 cachetools==5.5.2
 pydantic==2.10.6
 torch==2.6.0
-pillow==11.1.0
+pillow==12.3.0
 pytesseract==0.3.13
-pypdf==5.4.0
+pypdf==6.16.2
 pymupdf==1.25.5
 python-docx==1.1.2
-python-multipart==0.0.20
+python-multipart==0.0.32