Update webhook integration to use JSON for sending PDF data

Replaces multipart form data handling with JSON payload for the webhook API call, sending PDF content as a base64 encoded string. This change also removes the `busboy` dependency.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: cfbfe47c-0c9a-4ebf-8a41-2937407eccff
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/cfbfe47c-0c9a-4ebf-8a41-2937407eccff/WbfLPZt

package-lock.json

@@ -41,13 +41,11 @@
         "@radix-ui/react-tooltip": "^1.2.0",
         "@tanstack/react-query": "^5.60.5",
         "@types/bcrypt": "^6.0.0",
-        "@types/busboy": "^1.5.4",
         "@types/form-data": "^2.2.1",
         "@types/memoizee": "^0.4.12",
         "@types/node-fetch": "^2.6.13",
         "@types/pg": "^8.15.4",
         "bcrypt": "^6.0.0",
-        "busboy": "^1.6.0",
         "caniuse-lite": "^1.0.30001727",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
@@ -3625,15 +3623,6 @@
         "@types/node": "*"
       }
     },
-    "node_modules/@types/busboy": {
-      "version": "1.5.4",
-      "resolved": "https://registry.npmjs.org/@types/busboy/-/busboy-1.5.4.tgz",
-      "integrity": "sha512-kG7WrUuAKK0NoyxfQHsVE6j1m01s6kMma64E+OZenQABMQyTJop1DumUWcLwAQ2JzpefU7PDYoRDKl8uZosFjw==",
-      "license": "MIT",
-      "dependencies": {
-        "@types/node": "*"
-      }
-    },
     "node_modules/@types/connect": {
       "version": "3.4.38",
       "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.38.tgz",
@@ -4232,17 +4221,6 @@
         "node": ">=6.14.2"
       }
     },
-    "node_modules/busboy": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/busboy/-/busboy-1.6.0.tgz",
-      "integrity": "sha512-8SFQbg/0hQ9xy3UNTB0YEnsNBbWfhf7RtnzpL7TkBiTBRfrQ9Fxcnz7VJsleJpyp6rVLvXiuORqjlHi5q+PYuA==",
-      "dependencies": {
-        "streamsearch": "^1.1.0"
-      },
-      "engines": {
-        "node": ">=10.16.0"
-      }
-    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -8450,14 +8428,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/streamsearch": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-1.1.0.tgz",
-      "integrity": "sha512-Mcc5wHehp9aXz1ax6bZUyY5afg9u2rv5cqQI3mRrYkGC8rW2hM02jWuwjtL++LS5qinSyhj2QfLyNsuc+VsExg==",
-      "engines": {
-        "node": ">=10.0.0"
-      }
-    },
     "node_modules/string-width": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-5.1.2.tgz",