Satosa backend pending tasks

[peppelinux]

• ./satosa/html_template.py:28: # TODO - for rendering custom errors #154
• ./satosa/backend.py:145: # TODO: move this to the trust evaluation helper #155
• ./satosa/backend.py:284: # TODO: do not init the session if the context is not linked to any #156
• ./satosa/backend.py:362: # TODO - acr #157
• ./satosa/backend.py:384: # TODO - add a salt here #158
• ./satosa/backend.py:486: # TODO - if state is missing the db lookup fails ... #159
• ./satosa/backend.py:507: # TODO: handle vp token ops exceptions #160
• ./satosa/backend.py:556: # TODO - what if the credential is different from sd-jwt? -> generalyze within Vp class #161
• ./satosa/backend.py:569: # TODO: check the revocation of the credential #162
• ./satosa/backend.py:583: # TODO: not sure that we want these issuers in the following form ... please recheck. #163
• ./satosa/backend.py:603: # TODO - do we have to block in the case the update cannot be done? #164
• ./satosa/backend.py:659: # TODO: validate wia scheme using pydantic #141
• ./satosa/backend.py:696: # TODO: assert and configure the wallet capabilities #165
• ./satosa/backend.py:697: # TODO: assert and configure the wallet Attested Security Context #166
• ./satosa/backend.py:811: # TODO: add the trust chain in the JWS headers here #167
• ./satosa/backend.py:815: # TODO: update the storage with the acquired signed request object #168
• ./satosa/backend.py:834: # TODO: evaluate with UX designers if Jinja2 template #169
• ./satosa/backend.py:921: # TODO: if the request is expired -> return 403 #139
• ./jwk/schema.py:9: # TODO: verify if is optional #170
• ./tests/satosa/test_backend.py:223: # TODO: this test case must implement the backend requests in the correct order and with the correct nonce and state #146
• ./tests/satosa/test_backend.py:226: # TODO any additional checks after the backend returned the user attributes to satosa core #171
• ./tests/satosa/test_backend.py:300: # TODO - the authentication is successful ONLY if redirect_endpoints gets a valid presentation! #172

[peppelinux]

To be continued in the single issues