feat: enable Fischerei, Sitzungsprotokolle, Verbandsverwaltung modules

- Enable all 3 modules via NEXT_PUBLIC_ENABLE_* build args + runtime env
- Fix empty-string-to-null for date/optional columns in all module APIs:
  fischerei (24 fixes), verbandsverwaltung (15 fixes), sitzungsprotokolle (2 fixes)
- CACHE_BUST=12 for full rebuild with new feature flags

packages/features/verbandsverwaltung/src/server/api.ts

@@ -83,19 +83,19 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
         .insert({
           account_id: input.accountId,
           name: input.name,
-          short_name: input.shortName,
+          short_name: input.shortName || null,
           association_type_id: input.associationTypeId,
           member_count: input.memberCount,
           founded_year: input.foundedYear,
           street: input.street,
           zip: input.zip,
           city: input.city,
-          phone: input.phone,
-          email: input.email,
-          website: input.website,
-          iban: input.iban,
-          bic: input.bic,
-          account_holder: input.accountHolder,
+          phone: input.phone || null,
+          email: input.email || null,
+          website: input.website || null,
+          iban: input.iban || null,
+          bic: input.bic || null,
+          account_holder: input.accountHolder || null,
           is_archived: input.isArchived,
           created_by: userId,
           updated_by: userId,
@@ -206,8 +206,8 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
           first_name: input.firstName,
           last_name: input.lastName,
           role: input.role,
-          phone: input.phone,
-          email: input.email,
+          phone: input.phone || null,
+          email: input.email || null,
           is_primary: input.isPrimary,
         })
         .select()
@@ -265,7 +265,7 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
         .insert({
           account_id: input.accountId,
           name: input.name,
-          description: input.description,
+          description: input.description || null,
           sort_order: input.sortOrder,
         })
         .select()
@@ -319,7 +319,7 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
         .insert({
           account_id: input.accountId,
           name: input.name,
-          description: input.description,
+          description: input.description || null,
           sort_order: input.sortOrder,
         })
         .select()
@@ -373,7 +373,7 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
         .insert({
           account_id: input.accountId,
           name: input.name,
-          description: input.description,
+          description: input.description || null,
           default_amount: input.defaultAmount,
           is_active: input.isActive,
         })
@@ -462,8 +462,8 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
           fee_type_id: input.feeTypeId,
           year: input.year,
           amount: input.amount,
-          due_date: input.dueDate,
-          paid_date: input.paidDate,
+          due_date: input.dueDate || null,
+          paid_date: input.paidDate || null,
           payment_method: input.paymentMethod,
           status: input.status,
           notes: input.notes,
@@ -527,7 +527,7 @@ export function createVerbandApi(client: SupabaseClient<Database>) {
           title: input.title,
           content: input.content,
           note_type: input.noteType,
-          due_date: input.dueDate,
+          due_date: input.dueDate || null,
           is_completed: input.isCompleted,
         })
         .select()