Kontaktadresse: Neues Feld Position, Filter-Funktionen null-sicher, Projektnamen-Spalte entfernt

- Server: Neue Spalte position in Kontaktadresse-Modell (String(200), nullable)
- Server: Migration V01_04 (ALTER TABLE kontaktadressen ADD COLUMN position)
- Server: position in Geschäftslogik create/update aufgenommen
- Server: CLI-Musterdaten um Position ergänzt (Geschäftsführer, IT-Leiter etc.)
- Client: position in iKontaktadresse-Interface, View nach Firma, Columnmapper, Filter
- Client: Projektnamen-Spalte aus Kontaktadressenliste entfernt (steht in Überschrift)
- Client: Filter-Funktionen in allen Listen null-sicher (kunde, kontakt, projekt, kontaktadresse, call_log)

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

Client/Components/kontaktadresse.ts

@@ -64,10 +64,10 @@ export const kontaktadresseliste: m.ClosureComponent = (vnode) => {
         return [
             m("div", m("strong", kontaktadresse.name)),
             m("span", kontaktadresse.firma),
+            m("span", kontaktadresse.position),
             m("span", kontaktadresse.telefon),
             m("span", kontaktadresse.email),
             m("span", kontaktadresse.ort),
-            m("span", kontaktadresse.projekt_name),
             m("div", {style: {display: 'flex', gap: '0', 'white-space': 'nowrap'}},
                 m("button.w3-button.w3-small", {style: {padding: '0 2px'}, onclick: (e: Event) => editKontaktadresse(kontaktadresse, e)}, m("i.material-icons", "edit")),
                 m("button.w3-button.w3-small", {title: "Gesprächsnotiz hinzufügen", style: {padding: '0 2px'}, onclick: (e: Event) => addCallLog(kontaktadresse, e)}, m("i.material-icons", "add_call"))
@@ -78,12 +78,13 @@ export const kontaktadresseliste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let kontaktadresse: iKontaktadresse = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return kontaktadresse.name.toLowerCase().includes(searchLower) ||
-               kontaktadresse.firma.toLowerCase().includes(searchLower) ||
-               kontaktadresse.telefon.toLowerCase().includes(searchLower) ||
-               kontaktadresse.email.toLowerCase().includes(searchLower) ||
-               kontaktadresse.ort.toLowerCase().includes(searchLower) ||
-               kontaktadresse.projekt_name.toLowerCase().includes(searchLower)
+        return (kontaktadresse.name || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.firma || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.position || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.telefon || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.email || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.ort || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.projekt_name || "").toLowerCase().includes(searchLower)
     }
 
     return {
@@ -152,6 +153,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
         anrede: string
         name: string
         firma: string
+        position: string
         telefon: string
         email: string
         strasse: string
@@ -166,6 +168,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
         anrede: "",
         name: "",
         firma: "",
+        position: "",
         telefon: "",
         email: "",
         strasse: "",
@@ -200,6 +203,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
                     anrede: (formData.get("anrede") as string) || "",
                     name: (formData.get("name") as string) || "",
                     firma: (formData.get("firma") as string) || "",
+                    position: (formData.get("position") as string) || "",
                     telefon: (formData.get("telefon") as string) || "",
                     email: (formData.get("email") as string) || "",
                     strasse: (formData.get("strasse") as string) || "",
@@ -228,6 +232,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
                     m("label", "Anrede", m(Input, {name: "anrede", value: currentKontaktadresse.anrede, type: "text"} as iInput)),
                     m("label", "Name", m(Input, {name: "name", value: currentKontaktadresse.name, type: "text", required: true} as iInput)),
                     m("label", "Firma", m(Input, {name: "firma", value: currentKontaktadresse.firma, type: "text"} as iInput)),
+                    m("label", "Position", m(Input, {name: "position", value: currentKontaktadresse.position, type: "text"} as iInput)),
                     m("label", "Telefon", m(Input, {name: "telefon", value: currentKontaktadresse.telefon, type: "tel"} as iInput)),
                     m("label", "E-Mail", m(Input, {name: "email", value: currentKontaktadresse.email, type: "email"} as iInput)),
                     m("label", "Straße", m(Input, {name: "strasse", value: currentKontaktadresse.strasse, type: "text"} as iInput)),