Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/javascript/controllers/kanban_controller.js

@@ -0,0 +1,59 @@
+import { Controller } from "@hotwired/stimulus"
+
+export default class extends Controller {
+  static values = { projectCode: String }
+
+  dragstart(event) {
+    event.dataTransfer.setData("text/plain", event.target.dataset.opportunityId)
+    event.dataTransfer.effectAllowed = "move"
+  }
+
+  dragover(event) {
+    event.preventDefault()
+    event.currentTarget.classList.add("ring-2", "ring-emerald-400")
+  }
+
+  dragleave(event) {
+    event.currentTarget.classList.remove("ring-2", "ring-emerald-400")
+  }
+
+  async drop(event) {
+    event.preventDefault()
+    event.currentTarget.classList.remove("ring-2", "ring-emerald-400")
+
+    const opportunityId = event.dataTransfer.getData("text/plain")
+    const stage = event.currentTarget.dataset.stage
+    if (!opportunityId || !stage) return
+
+    if (stage === "lost") {
+      const reason = prompt("Motivo perdita (no_response, not_interested, price, competitor, no_streaming, timing, technical, deferred, other):", "other")
+      if (!reason) return
+      await this.updateStage(opportunityId, stage, reason)
+    } else {
+      await this.updateStage(opportunityId, stage)
+    }
+  }
+
+  async updateStage(opportunityId, stage, lostReason = null) {
+    const token = document.querySelector("meta[name='csrf-token']").content
+    const body = { pipeline_stage: stage }
+    if (lostReason) body.lost_reason = lostReason
+
+    const response = await fetch(`/p/${this.projectCodeValue}/opportunities/${opportunityId}/update_stage`, {
+      method: "PATCH",
+      headers: {
+        "Content-Type": "application/json",
+        "X-CSRF-Token": token,
+        "Accept": "application/json"
+      },
+      body: JSON.stringify(body)
+    })
+
+    if (response.ok) {
+      window.location.reload()
+    } else {
+      const data = await response.json().catch(() => ({}))
+      alert(data.errors?.join(", ") || "Impossibile aggiornare lo stage")
+    }
+  }
+}