docs(authentication): simplify auth guide with API key vs Client ID methods and remove AI-generated content#70

aimensahnoun wants to merge 1 commit into03-02-docs_api-features_rebuild_fee-breakdowns_with_api-accurate_fee_models_rewrite_api-features_fee-breakdowns.mdx_into_a_reconciliation-oriented_reference_that_reflects_actual_api_fee_fields_and_response_shapes._-_remove_ai-generateRequestNetwork/mintlify-docs:03-02-docs_api-features_rebuild_fee-breakdowns_with_api-accurate_fee_models_rewrite_api-features_fee-breakdowns.mdx_into_a_reconciliation-oriented_reference_that_reflects_actual_api_fee_fields_and_response_shapes._-_remove_ai-generatefrom

03-02-docs_api-reference_rewrite_authentication_page_as_canonical_auth_reference_replace_the_previous_ai-generated_authentication_page_with_a_focused_api-accurate_authentication_reference_that_stands_on_its_own_and_avoids_duplicating_RequestNetwork/mintlify-docs:03-02-docs_api-reference_rewrite_authentication_page_as_canonical_auth_reference_replace_the_previous_ai-generated_authentication_page_with_a_focused_api-accurate_authentication_reference_that_stands_on_its_own_and_avoids_duplicating_Copy head branch name to clipboard