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f038cf3be7* Add M2M client credentials auth providers Wrap the SDK's client_credentials and private_key_jwt OAuth providers as FastMCP-idiomatic ClientCredentialsOAuthProvider and PrivateKeyJWTOAuthProvider, enabling browser-free client authentication via Client(auth=...). * Fix M2M token cache collision and explicit-scope drop Namespace the token cache by client_id so distinct clients sharing one store don't overwrite each other's tokens; pin caller-supplied scopes so the token request keeps them; fix CodeQL URL-substring check in tests; drop unused logger. * Preserve step-up scope union, scope-aware token cache, restore token expiry Only pin the caller's explicit scopes on initial authorization, leaving the SDK's step-up scope union intact; namespace the token cache by requested scopes as well as client_id; restore persisted absolute expiry on init so an expired stored token is re-fetched. * Skip expiry restore for non-expiring reloaded tokens * Distinguish expires_in=0 from omitted when restoring expiry * Scope step-up flag to the flow via ContextVar; runnable JWT signing example |
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