feat(job-completion): add message and photo upload to job completion

app/actions/upload-image.ts

@@ -0,0 +1,50 @@
+"use server"
+
+import { writeFile, mkdir } from "fs/promises"
+import { join } from "path"
+import { v4 as uuidv4 } from "uuid"
+
+export async function uploadImage(data: FormData) {
+    const file: File | null = data.get("file") as unknown as File
+
+    if (!file) {
+        throw new Error("No file uploaded")
+    }
+
+    const bytes = await file.arrayBuffer()
+    const buffer = Buffer.from(bytes)
+
+    // Validate mime type (basic check)
+    if (!file.type.startsWith("image/")) {
+        throw new Error("Only images are allowed")
+    }
+
+    // Create uploads directory if it doesn't exist
+    // We organize by generic uploads folder for now, or per plan?
+    // Let's optimize for simplicity: /public/uploads/YYYY/MM
+
+    const now = new Date()
+    const year = now.getFullYear()
+    const month = String(now.getMonth() + 1).padStart(2, '0')
+    const params = data.get("planId") ? String(data.get("planId")) : "misc"
+
+    // Use /uploads/planId/ to keep it somewhat organized or cleanup-able
+    const relativeDir = join("uploads", params)
+    const uploadDir = join(process.cwd(), "public", relativeDir)
+
+    try {
+        await mkdir(uploadDir, { recursive: true })
+    } catch (e) {
+        // ignore if exists
+    }
+
+    // Generate filename
+    const ext = file.name.split('.').pop() || "jpg"
+    const filename = `${uuidv4()}.${ext}`
+    const filepath = join(uploadDir, filename)
+
+    await writeFile(filepath, buffer)
+
+    // Return the public URL
+    return `/${relativeDir}/${filename}`
+}