feat(LiveChatPaidMessage): Parse headerOverlayImage and lowerBumper

[jonz94]

When a viewer donates for the 1st, 3rd, 5th, 10th, or 20th time, there will be a special type of LiveChatPaidMessage that includes an animated image in the header, followed by a bumper text message.

Example RawNode data:

{
  "liveChatPaidMessageRenderer": {
    "id": "ChwKGkNNLW5qY3lHcVlvREZUWER3Z1FkcHY4MEhn",
    "timestampUsec": "1734240867193101",
    "authorName": {
      "simpleText": "Alice Phi - 小ㄈㄞ"
    },
    "authorPhoto": {
      "thumbnails": [
        {
          "url": "https://yt4.ggpht.com/A-kvvyBXNbkhlBQPKwkVqBD1dYoG5l4licWKpSYseFMcYHsK8kpnTGpGBPpT6SoT_xmI3RRExg=s32-c-k-c0x00ffffff-no-rj",
          "width": 32,
          "height": 32
        },
        {
          "url": "https://yt4.ggpht.com/A-kvvyBXNbkhlBQPKwkVqBD1dYoG5l4licWKpSYseFMcYHsK8kpnTGpGBPpT6SoT_xmI3RRExg=s64-c-k-c0x00ffffff-no-rj",
          "width": 64,
          "height": 64
        }
      ]
    },
    "purchaseAmountText": {
      "simpleText": "NT$7,500.00"
    },
    "message": {
      "runs": [
        {
          "text": "只要巧克力就好唷 也不用累積保底 最多抽到最多5次巧克力就可以停囉"
        }
      ]
    },
    "headerBackgroundColor": 4291821568,
    "headerTextColor": 4294967295,
    "bodyBackgroundColor": 4293271831,
    "bodyTextColor": 4294967295,
    "authorExternalChannelId": "UC95_zFNr4pg1hD0rMDhTDcg",
    "authorNameTextColor": 3019898879,
    "contextMenuEndpoint": {
      "clickTrackingParams": "CCwQ7rsEIhMI6ICQ3cepigMVlvJMAh0J0ydD",
      "commandMetadata": {
        "webCommandMetadata": {
          "ignoreNavigation": true
        }
      },
      "liveChatItemContextMenuEndpoint": {
        "params": "Q2g0S0hBb2FRMDB0Ym1wamVVZHhXVzlFUmxSWVJIZG5VV1J3ZGpnd1NHY2FLU29uQ2hoVlEySnJlVFV5TWtwclJVWklWbTl1VGxReVRYTnRSa0VTQzBaMlFVczVSVzF6YUZKcklBRW9CRElhQ2hoVlF6azFYM3BHVG5JMGNHY3hhRVF3Y2sxRWFGUkVZMmM0QWtnQVVBOCUzRA=="
      }
    },
    "timestampColor": 2164260863,
    "contextMenuAccessibility": {
      "accessibilityData": {
        "label": "Chat actions"
      }
    },
    "trackingParams": "CCwQ7rsEIhMI6ICQ3cepigMVlvJMAh0J0ydD",
    "headerOverlayImage": {
      "thumbnails": [
        {
          "url": "https://www.gstatic.com/youtube/img/pdg/novelty/1st_purchase_celebration_novelty_animation/1st_Purchase_Celebration_Novelty_SC_IL_T7_v1.webp",
          "width": 130,
          "height": 48
        }
      ]
    },
    "authorBadges": [
      {
        "liveChatAuthorBadgeRenderer": {
          "customThumbnail": {
            "thumbnails": [
              {
                "url": "https://yt3.ggpht.com/WrfoTKKqCeWXBrvVO4DVp6jhLK83Wp768_02yuFCTZ5JLZSXbij91a7YWUTkP5SOLM7z_F1S=s16-c-k",
                "width": 16,
                "height": 16
              },
              {
                "url": "https://yt3.ggpht.com/WrfoTKKqCeWXBrvVO4DVp6jhLK83Wp768_02yuFCTZ5JLZSXbij91a7YWUTkP5SOLM7z_F1S=s32-c-k",
                "width": 32,
                "height": 32
              }
            ]
          },
          "tooltip": "New member",
          "accessibility": {
            "accessibilityData": {
              "label": "New member"
            }
          }
        }
      }
    ],
    "textInputBackgroundColor": 805306368,
    "lowerBumper": {
      "liveChatItemBumperViewModel": {
        "content": {
          "bumperUserEduContentViewModel": {
            "text": {
              "content": "Let's celebrate their 1st Super on a live stream",
              "styleRuns": [
                {
                  "startIndex": 0,
                  "length": 48
                }
              ]
            },
            "trackingParams": "CDMQk5YLIhMI6ICQ3cepigMVlvJMAh0J0ydD",
            "image": {
              "sources": [
                {
                  "clientResource": {
                    "imageName": "CELEBRATION",
                    "imageColor": 4294901760
                  }
                }
              ]
            }
          }
        },
        "pdgPurchasedBumperLoggingDirectives": {
          "loggingDirectives": {
            "trackingParams": "CDIQ784LIhMI6ICQ3cepigMVlvJMAh0J0ydD",
            "visibility": {
              "types": "12"
            }
          }
        }
      }
    },
    "creatorHeartButton": {
      "creatorHeartViewModel": {
        "creatorThumbnail": {
          "sources": [
            {
              "url": "https://yt3.ggpht.com/laFjb4QiJEAtkTMhklPWcmLASZSdMPE6Blqrqo2RtdbebqXwQpYGDAC80bo3QhTInCiEQ4i-eCA=s48-c-k-c0x00ffffff-no-rj"
            }
          ]
        },
        "heartedIcon": {
          "sources": [
            {
              "clientResource": {
                "imageName": "full_heart-filled"
              }
            }
          ]
        },
        "unheartedIcon": {
          "sources": [
            {
              "clientResource": {
                "imageName": "full_heart"
              }
            }
          ],
          "processor": {
            "borderImageProcessor": {
              "imageTint": {
                "color": 4294967295
              }
            }
          }
        },
        "heartedHoverText": "❤ by 柳葉魚子醬 / Yanagiba Nanako Ch.",
        "heartedAccessibilityLabel": "Remove heart",
        "unheartedAccessibilityLabel": "Heart",
        "engagementStateKey": "EktsaXZlLWNoYXQtbWVzc2FnZS1lbmdhZ2VtZW50LXN0YXRlLUNod0tHa05OTFc1cVkzbEhjVmx2UkVaVVdFUjNaMUZrY0hZNE1FaG4gLCgB",
        "gradient": {
          "sources": [
            {
              "url": "//youtube.com/img/pdg/gradient.png"
            }
          ],
          "processor": {
            "borderImageProcessor": {
              "imageTint": {
                "color": 4293271831
              }
            }
          }
        },
        "loggingDirectives": {
          "trackingParams": "CDEQr5gLIhMI6ICQ3cepigMVlvJMAh0J0ydD",
          "visibility": {
            "types": "4"
          }
        }
      }
    },
    "isV2Style": true,
    "pdgPurchasedNoveltyLoggingDirectives": {
      "loggingDirectives": {
        "trackingParams": "CDAQ7s4LIhMI6ICQ3cepigMVlvJMAh0J0ydD",
        "visibility": {
          "types": "12"
        }
      }
    },
    "pdgLikeButton": {
      "pdgLikeViewModel": {
        "toggleButton": {
          "toggleButtonViewModel": {
            "defaultButtonViewModel": {
              "buttonViewModel": {
                "trackingParams": "CC8QkpQMIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                "loggingDirectives": {
                  "trackingParams": "CC8QkpQMIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                  "visibility": {
                    "types": "12"
                  }
                }
              }
            },
            "toggledButtonViewModel": {
              "buttonViewModel": {
                "trackingParams": "CC4QhJUMIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                "loggingDirectives": {
                  "trackingParams": "CC4QhJUMIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                  "visibility": {
                    "types": "12"
                  }
                }
              }
            },
            "trackingParams": "CCwQ7rsEIhMI6ICQ3cepigMVlvJMAh0J0ydD"
          }
        }
      }
    },
    "replyButton": {
      "pdgReplyButtonViewModel": {
        "replyButton": {
          "buttonViewModel": {
            "iconName": "CHAT",
            "onTap": {
              "innertubeCommand": {
                "clickTrackingParams": "CC0Q68ENIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                "showEngagementPanelEndpoint": {
                  "identifier": {
                    "surface": "ENGAGEMENT_PANEL_SURFACE_LIVE_CHAT",
                    "tag": "PAreply_thread"
                  },
                  "globalConfiguration": {
                    "params": "ggnJAgojVWd6SnZZS0E0dVpqeEJhbV9jbDRBYUFCRHFnQjBxV3lpd0kSVgopKicKGFVDYmt5NTIySmtFRkhWb25OVDJNc21GQRILRnZBSzlFbXNoUmsQARgEIAE6I1Vnekp2WUtBNHVaanhCYW1fY2w0QWFBQkRxZ0IwcVd5aXdJGpoBCAAYACAASggQABgAIAAwAFC1pJDdx6mKA1gEYihDaHdLR2tOTk5uVnlZbE5yY1ZsdlJFWlNNMEozWjFGa2JFVXdjbXhueACiAQQaAgg8qgEMEAAaACIAKgQIABAAsAEAwAEAyAG1pJDdx6mKA-IBDAiY3fq6BhDP4cydA-gBAPABAPgBAIgCAJACAJoCDAiY3fq6BhDP4cydAyIpKicKGFVDYmt5NTIySmtFRkhWb25OVDJNc21GQRILRnZBSzlFbXNoUmsoATAA"
                  },
                  "engagementPanelPresentationConfigs": {
                    "engagementPanelPopupPresentationConfig": {
                      "popupType": "PANEL_POPUP_TYPE_DIALOG"
                    }
                  }
                }
              }
            },
            "accessibilityText": "Reply",
            "style": "BUTTON_VIEW_MODEL_STYLE_CUSTOM",
            "trackingParams": "CC0Q68ENIhMI6ICQ3cepigMVlvJMAh0J0ydD",
            "type": "BUTTON_VIEW_MODEL_TYPE_TONAL",
            "buttonSize": "BUTTON_VIEW_MODEL_SIZE_XSMALL",
            "customBackgroundColor": 452984831,
            "customFontColor": 4294967295,
            "onVisible": {
              "innertubeCommand": {
                "clickTrackingParams": "CC0Q68ENIhMI6ICQ3cepigMVlvJMAh0J0ydD",
                "logFlowLoggingEventCommand": {
                  "flowEventType": 1,
                  "flowEventNamespace": "FLOW_EVENT_NAMESPACE_LIVE_CHAT_ENGAGEMENT",
                  "flowType": "FLOW_TYPE_LIVE_CHAT_ENGAGEMENT",
                  "flowEventMetadata": {
                    "liveChatEngagementContext": {
                      "entryPointType": "LIVE_CHAT_ENGAGEMENT_ENTRY_POINT_REPLY_BUTTON"
                    }
                  }
                }
              }
            },
            "loggingDirectives": {
              "trackingParams": "CC0Q68ENIhMI6ICQ3cepigMVlvJMAh0J0ydD",
              "visibility": {
                "types": "12"
              }
            }
          }
        },
        "replyCountEntityKey": "EiNVZ3pKdllLQTR1Wmp4QmFtX2NsNEFhQUJEcWdCMHFXeWl3SSDxAygB",
        "replyCountPlaceholder": {
          "content": "Reply",
          "styleRuns": [
            {
              "startIndex": 0,
              "length": 5
            }
          ]
        }
      }
    }
  }
}