feat: bulk send templates via csv (#1578)

Implements a bulk send feature allowing users to upload a CSV file to
create multiple documents from a template. Includes CSV template
generation, background processing, and email notifications.

package-lock.json

@@ -17641,6 +17641,12 @@
       "integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
       "license": "MIT"
     },
+    "node_modules/csv-parse": {
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/csv-parse/-/csv-parse-5.6.0.tgz",
+      "integrity": "sha512-l3nz3euub2QMg5ouu5U09Ew9Wf6/wQ8I++ch1loQ0ljmzhmfZYrH9fflS22i/PQEvsPvxCwxgz5q7UB8K1JO4Q==",
+      "license": "MIT"
+    },
     "node_modules/cytoscape": {
       "version": "3.31.0",
       "resolved": "https://registry.npmjs.org/cytoscape/-/cytoscape-3.31.0.tgz",
@@ -41802,6 +41808,7 @@
         "@trigger.dev/sdk": "^2.3.18",
         "@upstash/redis": "^1.20.6",
         "@vvo/tzdb": "^6.117.0",
+        "csv-parse": "^5.6.0",
         "inngest": "^3.19.13",
         "kysely": "0.26.3",
         "luxon": "^3.4.0",