diff --git a/package-lock.json b/package-lock.json
index 210a72f..02ced83 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.0.0",
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+        "@radix-ui/react-alert-dialog": "^1.1.15",
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@@ -52,6 +53,7 @@
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         "nodemailer": "^8.0.6",
         "p-queue": "^9.1.0",
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         "pino-pretty": "^13.1.3",
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@@ -67,6 +69,7 @@
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         "tailwind-merge": "^2.6.0",
         "tailwindcss": "^4.0.0",
+        "twilio": "^6.0.0",
         "vite-plugin-pwa": "^1.2.0",
         "workbox-window": "^7.4.0",
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@@ -79,6 +82,7 @@
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         "@types/jsonwebtoken": "^9.0.7",
         "@types/node": "^22.10.2",
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         "@types/react": "^19.0.2",
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       "license": "MIT"
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+    "node_modules/@noble/ciphers": {
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+      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-1.3.0.tgz",
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+      "license": "MIT",
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       "license": "MIT"
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+      "resolved": "https://registry.npmjs.org/@radix-ui/react-alert-dialog/-/react-alert-dialog-1.1.15.tgz",
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+      "license": "MIT",
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+        "@radix-ui/react-compose-refs": "1.1.2",
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+        "@radix-ui/react-dialog": "1.1.15",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-slot": "1.2.3"
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+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
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+        "@types/react-dom": {
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+    "node_modules/@radix-ui/react-alert-dialog/node_modules/@radix-ui/react-slot": {
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+      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "1.1.2"
+      },
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+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
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@@ -4936,6 +4997,15 @@
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+      "resolved": "https://registry.npmjs.org/@swc/helpers/-/helpers-0.5.21.tgz",
+      "integrity": "sha512-jI/VAmtdjB/RnI8GTnokyX7Ug8c+g+ffD6QRLa6XQewtnGyukKkKSk3wLTM3b5cjt1jNh9x0jfVlagdN2gDKQg==",
+      "license": "Apache-2.0",
+      "dependencies": {
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@@ -5553,6 +5623,16 @@
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+      "resolved": "https://registry.npmjs.org/@types/pdfkit/-/pdfkit-0.17.6.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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@@ -5910,6 +5990,18 @@
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+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "4"
+      },
+      "engines": {
+        "node": ">= 6.0.0"
+      }
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@@ -6095,6 +6186,17 @@
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+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.15.2.tgz",
+      "integrity": "sha512-wLrXxPtcrPTsNlJmKjkPnNPK2Ihe0hn0wGSaTEiHRPxwjvJwT3hKmXF4dpqxmPO9SoNb2FsYXj/xEo0gHN+D5A==",
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+        "follow-redirects": "^1.15.11",
+        "form-data": "^4.0.5",
+        "proxy-from-env": "^2.1.0"
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@@ -6143,6 +6245,26 @@
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+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
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+      "license": "MIT"
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@@ -6236,6 +6358,24 @@
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+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/brotli/-/brotli-1.3.3.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "^1.1.2"
+      }
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+    "node_modules/browserify-zlib": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/browserify-zlib/-/browserify-zlib-0.2.0.tgz",
+      "integrity": "sha512-Z942RysHXmJrhqk88FmKBVq/v5tqmSkDz7p54G/MGyjMnCFFnC79XWNbg+Vta8W6Wb2qtSZTSxIGkJrRpCFEiA==",
+      "license": "MIT",
+      "dependencies": {
+        "pako": "~1.0.5"
+      }
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@@ -6473,6 +6613,15 @@
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+      "resolved": "https://registry.npmjs.org/clone/-/clone-2.1.2.tgz",
+      "integrity": "sha512-3Pe/CF1Nn94hyhIYpjtiLhdCoEoz0DqQ+988E9gmeEdQZlojxnOb74wctFyuwWQHzqyf9X7C7MG8juUpqBJT8w==",
+      "license": "MIT",
+      "engines": {
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+      }
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@@ -6924,6 +7072,12 @@
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+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.20.tgz",
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@@ -7073,6 +7226,12 @@
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+      "resolved": "https://registry.npmjs.org/dfa/-/dfa-1.2.0.tgz",
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@@ -7867,6 +8026,43 @@
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+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.16.0.tgz",
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+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
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+    "node_modules/fontkit": {
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+      "resolved": "https://registry.npmjs.org/fontkit/-/fontkit-2.0.4.tgz",
+      "integrity": "sha512-syetQadaUEDNdxdugga9CpEYVaQIxOwk7GlwZWWZ19//qW4zE5bknOKeMBDYAASwnpaSHKJITRLMF9m1fp3s6g==",
+      "license": "MIT",
+      "dependencies": {
+        "@swc/helpers": "^0.5.12",
+        "brotli": "^1.3.2",
+        "clone": "^2.1.2",
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+        "fast-deep-equal": "^3.1.3",
+        "restructure": "^3.0.0",
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+        "unicode-properties": "^1.4.0",
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@@ -8405,6 +8600,19 @@
         "url": "https://opencollective.com/express"
       }
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+    "node_modules/https-proxy-agent": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "agent-base": "6",
+        "debug": "4"
+      },
+      "engines": {
+        "node": ">= 6"
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@@ -9000,6 +9208,12 @@
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+      "resolved": "https://registry.npmjs.org/js-md5/-/js-md5-0.8.3.tgz",
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@@ -9439,6 +9653,25 @@
         "url": "https://opencollective.com/parcel"
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+      "resolved": "https://registry.npmjs.org/linebreak/-/linebreak-1.1.0.tgz",
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+      "license": "MIT",
+      "engines": {
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+    "node_modules/pako": {
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+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
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+      "license": "(MIT AND Zlib)"
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@@ -10093,6 +10332,20 @@
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+      "license": "MIT",
+      "dependencies": {
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+        "@noble/hashes": "^1.6.0",
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+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/png-js/-/png-js-1.1.0.tgz",
+      "integrity": "sha512-PM/uYGzGdNSzqeOgly68+6wKQDL1SY0a/N+OEa/+br6LnHWOAJB0Npiamnodfq3jd2LS/i2fMeOKSAILjA+m5Q==",
+      "dependencies": {
+        "browserify-zlib": "^0.2.0"
+      }
+    },
     "node_modules/pngjs": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/pngjs/-/pngjs-5.0.0.tgz",
@@ -10318,6 +10579,15 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-2.1.0.tgz",
+      "integrity": "sha512-cJ+oHTW1VAEa8cJslgmUZrc+sjRKgAKl3Zyse6+PV38hZe/V6Z14TbCuXcan9F9ghlz4QrFr2c92TNF82UkYHA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/pump": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.4.tgz",
@@ -10884,6 +11154,12 @@
         "url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
       }
     },
+    "node_modules/restructure": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/restructure/-/restructure-3.0.2.tgz",
+      "integrity": "sha512-gSfoiOEA0VPE6Tukkrr7I0RBdE0s7H1eFCDBk05l1KIQT1UIKNc5JZy6jdyW6eYH3aR3g5b3PuL77rq0hvwtAw==",
+      "license": "MIT"
+    },
     "node_modules/rollup": {
       "version": "4.60.2",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.60.2.tgz",
@@ -11031,6 +11307,13 @@
       "integrity": "sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==",
       "license": "MIT"
     },
+    "node_modules/scmp": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/scmp/-/scmp-2.1.0.tgz",
+      "integrity": "sha512-o/mRQGk9Rcer/jEEw/yw4mwo3EU/NvYvp577/Btqrym9Qy5/MdWGBqipbALgd2lrdWTJ5/gqDusxfnQBxOxT2Q==",
+      "deprecated": "Just use Node.js's crypto.timingSafeEqual()",
+      "license": "BSD-3-Clause"
+    },
     "node_modules/secure-json-parse": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/secure-json-parse/-/secure-json-parse-4.1.0.tgz",
@@ -11895,6 +12178,12 @@
         "node": ">=20"
       }
     },
+    "node_modules/tiny-inflate": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-inflate/-/tiny-inflate-1.0.3.tgz",
+      "integrity": "sha512-pkY1fj1cKHb2seWDy0B16HeWyczlJA9/WW3u3c4z/NiWDsO3DOU5D7nhTLE9CF0yXv/QZFY7sEJmj24dK+Rrqw==",
+      "license": "MIT"
+    },
     "node_modules/tiny-invariant": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.3.tgz",
@@ -12443,6 +12732,24 @@
         "@esbuild/win32-x64": "0.27.7"
       }
     },
+    "node_modules/twilio": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/twilio/-/twilio-6.0.0.tgz",
+      "integrity": "sha512-MAie5DJ3KLpcKlDaYtNzsKMQXcCi+YHWKvZjuSpm27vJAO/l8PanJA0LkkJ03sbh+Kwe5NeL0Q2+y6IjNUYeUA==",
+      "license": "MIT",
+      "dependencies": {
+        "axios": "^1.13.5",
+        "dayjs": "^1.11.9",
+        "https-proxy-agent": "^5.0.0",
+        "jsonwebtoken": "^9.0.3",
+        "qs": "^6.14.1",
+        "scmp": "^2.1.0",
+        "xmlbuilder": "^13.0.2"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      }
+    },
     "node_modules/type-fest": {
       "version": "0.16.0",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.16.0.tgz",
@@ -12622,6 +12929,16 @@
         "node": ">=4"
       }
     },
+    "node_modules/unicode-properties": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/unicode-properties/-/unicode-properties-1.4.1.tgz",
+      "integrity": "sha512-CLjCCLQ6UuMxWnbIylkisbRj31qxHPAurvena/0iwSVbQ2G1VY5/HjV0IRabOEbDHlzZlRdCrD4NhB0JtU40Pg==",
+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "^1.3.0",
+        "unicode-trie": "^2.0.0"
+      }
+    },
     "node_modules/unicode-property-aliases-ecmascript": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/unicode-property-aliases-ecmascript/-/unicode-property-aliases-ecmascript-2.2.0.tgz",
@@ -12631,6 +12948,22 @@
         "node": ">=4"
       }
     },
+    "node_modules/unicode-trie": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/unicode-trie/-/unicode-trie-2.0.0.tgz",
+      "integrity": "sha512-x7bc76x0bm4prf1VLg79uhAzKw8DVboClSN5VxJuQ+LKDOVEW9CdH+VY7SP+vX7xCYQqzzgQpFqz15zeLvAtZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "pako": "^0.2.5",
+        "tiny-inflate": "^1.0.0"
+      }
+    },
+    "node_modules/unicode-trie/node_modules/pako": {
+      "version": "0.2.9",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-0.2.9.tgz",
+      "integrity": "sha512-NUcwaKxUxWrZLpDG+z/xZaCgQITkA/Dv4V/T6bw7VON6l1Xz/VnrBqrYjZQ12TamKHzITTfOEIYUj48y2KXImA==",
+      "license": "MIT"
+    },
     "node_modules/unique-string": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/unique-string/-/unique-string-2.0.0.tgz",
@@ -14982,6 +15315,15 @@
         }
       }
     },
+    "node_modules/xmlbuilder": {
+      "version": "13.0.2",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-13.0.2.tgz",
+      "integrity": "sha512-Eux0i2QdDYKbdbA6AM6xE4m6ZTZr4G4xF9kahI2ukSEMCzwce2eX9WlTI5J3s+NU7hpasFsr8hWIONae7LluAQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.0"
+      }
+    },
     "node_modules/xmlhttprequest-ssl": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.1.2.tgz",
diff --git a/package.json b/package.json
index 4576757..de17366 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   },
   "dependencies": {
     "@hapi/boom": "^10.0.1",
+    "@radix-ui/react-alert-dialog": "^1.1.15",
     "@radix-ui/react-checkbox": "^1.1.3",
     "@radix-ui/react-dialog": "^1.1.4",
     "@radix-ui/react-dropdown-menu": "^2.1.4",
@@ -60,6 +61,7 @@
     "nanoid": "^5.0.9",
     "nodemailer": "^8.0.6",
     "p-queue": "^9.1.0",
+    "pdfkit": "^0.18.0",
     "pino": "^10.3.1",
     "pino-pretty": "^13.1.3",
     "qrcode": "^1.5.4",
@@ -75,6 +77,7 @@
     "stripe": "^22.1.0",
     "tailwind-merge": "^2.6.0",
     "tailwindcss": "^4.0.0",
+    "twilio": "^6.0.0",
     "vite-plugin-pwa": "^1.2.0",
     "workbox-window": "^7.4.0",
     "wouter": "^3.3.5",
@@ -87,6 +90,7 @@
     "@types/express": "^4.17.21",
     "@types/jsonwebtoken": "^9.0.7",
     "@types/node": "^22.10.2",
+    "@types/pdfkit": "^0.17.6",
     "@types/qrcode": "^1.5.5",
     "@types/react": "^19.0.2",
     "@types/react-dom": "^19.0.2",
diff --git a/shared/smsTemplates.ts b/shared/smsTemplates.ts
new file mode 100644
index 0000000..578ef5e
--- /dev/null
+++ b/shared/smsTemplates.ts
@@ -0,0 +1,118 @@
+/**
+ * SMS message templates with dynamic variable interpolation.
+ *
+ * SMS messages avoid markdown (no *bold*) and rich emojis to keep
+ * carrier compatibility and minimise character count (1 SMS = 160 chars
+ * GSM-7, 70 chars UCS-2). Templates are kept short by design.
+ *
+ * Variables disponibles :
+ *   {{nom}}      – Nom du patient
+ *   {{ticket}}   – Numéro de ticket
+ *   {{position}} – Position dans la file
+ *   {{attente}}  – Temps d'attente estimé (en minutes)
+ *   {{cabinet}}  – Nom du cabinet
+ */
+
+import {
+  type TemplateContext,
+  type TemplateType,
+  interpolateTemplate,
+} from "./whatsappTemplates.js";
+
+export type { TemplateContext, TemplateType };
+
+// ─── Default SMS templates (French, plain-text, short) ───────────────────────
+
+export const DEFAULT_SMS_TEMPLATES: Record<TemplateType, string> = {
+  joined:
+    `QueueMed - {{cabinet}}\n` +
+    `Ticket {{ticket}} | Position {{position}} | ~{{attente}}min\n` +
+    `Restez a proximite, vous serez prevenu(e) avant votre tour.`,
+
+  soon:
+    `QueueMed - {{cabinet}}\n` +
+    `Votre tour approche! Ticket {{ticket}}, ~{{attente}}min.\n` +
+    `Merci de venir en salle d'attente maintenant.`,
+
+  called:
+    `QueueMed - {{cabinet}}\n` +
+    `C'est votre tour! Ticket {{ticket}}.\n` +
+    `Veuillez vous presenter au cabinet.`,
+
+  withdrawn:
+    `QueueMed - {{cabinet}}\n` +
+    `Desistement enregistre. Ticket {{ticket}} annule. A bientot!`,
+};
+
+/**
+ * Get the effective SMS template: custom if set, otherwise default.
+ */
+export function getEffectiveSmsTemplate(
+  type: TemplateType,
+  customTemplates?: Partial<Record<TemplateType, string | null>>
+): string {
+  const custom = customTemplates?.[type];
+  if (custom && custom.trim().length > 0) return custom;
+  return DEFAULT_SMS_TEMPLATES[type];
+}
+
+/**
+ * Build a final SMS message with template + interpolated variables.
+ */
+export function buildSmsMessage(
+  type: TemplateType,
+  context: TemplateContext,
+  customTemplates?: Partial<Record<TemplateType, string | null>>
+): string {
+  const template = getEffectiveSmsTemplate(type, customTemplates);
+  return interpolateTemplate(template, context);
+}
+
+export function buildSmsJoinMessage(
+  clinicName: string,
+  ticketNumber: number,
+  position: number,
+  estimatedWait: number
+): string {
+  return buildSmsMessage("joined", {
+    nom: "",
+    ticket: ticketNumber,
+    position,
+    attente: estimatedWait,
+    cabinet: clinicName,
+  });
+}
+
+export function buildSmsSoonMessage(
+  clinicName: string,
+  ticketNumber: number,
+  minutesLeft: number
+): string {
+  return buildSmsMessage("soon", {
+    nom: "",
+    ticket: ticketNumber,
+    position: 0,
+    attente: minutesLeft,
+    cabinet: clinicName,
+  });
+}
+
+export function buildSmsCalledMessage(clinicName: string, ticketNumber: number): string {
+  return buildSmsMessage("called", {
+    nom: "",
+    ticket: ticketNumber,
+    position: 0,
+    attente: 0,
+    cabinet: clinicName,
+  });
+}
+
+export function buildSmsWithdrawnMessage(clinicName: string, ticketNumber: number): string {
+  return buildSmsMessage("withdrawn", {
+    nom: "",
+    ticket: ticketNumber,
+    position: 0,
+    attente: 0,
+    cabinet: clinicName,
+  });
+}