Implement V2 registration support (#7765)

* Implement V2 registration support

* Require the client version header on every login, like upstream

Every user login (password, user API key, SSO, including a first SSO login)
now needs the Bitwarden-Client-Version header, for V1 accounts too. V2
accounts need 2026.10.1, or 2026.10.2 for the desktop app, upstream's
current minimum.

* Escape the email in the client version log line

On a first SSO login the email comes from the identity provider and isn't validated yet, so a newline in it could add a line to the log.

.typos.toml

@@ -14,9 +14,8 @@ extend-ignore-re = [
     # In SMTP it's called HELO, so ignore it
     "(?i)helo_name",
     "Server name sent during.+HELO",
-    # COSE Is short for CBOR Object Signing and Encryption, ignore these specific items
-    "COSEKey",
-    "COSEAlgorithm",
+    # COSE Is short for CBOR Object Signing and Encryption
+    "(?i)cose",
     # Ignore this specific string as it's valid
     "Ensure they are valid OTPs",
     # This word is misspelled upstream