feat: enhance connection validation and node creation logic, improve type handling in various components

frontend/src/lib/abstractNode.ts

@@ -13,6 +13,7 @@
 import React, { useCallback, useContext, useMemo } from 'react'
 import FlowContext from './flowContext'
 import { nodePropsAreEqual } from './flowUtils'
+import type { AppNode } from './nodeTypes'
 
 // ---------------------------------------------------------------------------
 // Types
@@ -74,10 +75,10 @@ export function useAbstractNode<TData = Record<string, unknown>>(
   const updateData = useCallback(
     (partial: Partial<TData>) => {
       if (!setNodes) return
-      setNodes((nds: FlowNode[]) =>
+      setNodes((nds: AppNode[]) =>
         nds.map((n) =>
           n.id === id ? { ...n, data: { ...(n.data as object), ...partial } } : n
-        )
+        ) as AppNode[]
       )
     },
     [id, setNodes]
@@ -105,7 +106,7 @@ export function useAbstractNode<TData = Record<string, unknown>>(
     data,
     nodes,
     edges,
-    setNodes: setNodes ?? (() => {}),
+    setNodes: ((setNodes ?? (() => {})) as AbstractNodeContext<TData>['setNodes']),
     setEdges: setEdges ?? (() => {}),
     updateData,
     incomingEdges,

frontend/src/lib/flowUtils.ts

@@ -8,7 +8,6 @@ import {
   getIdPrefix,
   getDefaultDataForType as getDefaultDataFromRegistry,
   getResetDataForType as getResetDataFromRegistry,
-  getDefaultStyle,
 } from './nodeRegistry'
 
 export function nodePropsAreEqual<P extends { id?: string; data?: any; width?: number; height?: number; selected?: boolean }>(
@@ -24,14 +23,6 @@ export function nodePropsAreEqual<P extends { id?: string; data?: any; width?: n
   )
 }
 
-/** @deprecated Use getIdPrefix from nodeRegistry for new code. Kept for compatibility. */
-export const PREFIX_BY_TYPE: Record<string, string> = {
-  config: 'cfg_',
-  render: 'rnd_',
-  variable: 'var_',
-  function: 'fn_',
-}
-
 /** Next node id for type: prefix + 3-digit increasing number (001, 002, …). Uses nodeRegistry for prefix when available. */
 export function getNextNodeId(type: string, existingIds: string[]): string {
   const prefix = getIdPrefix(type)
@@ -91,7 +82,3 @@ export function getResetDataForType(type: string, nodeId?: string): any {
   return getResetDataFromRegistry(type, nodeId)
 }
 
-/** Default style for a type. Uses nodeRegistry when type is registered. */
-export function getDefaultStyleForType(type: string): { width: number; height: number } {
-  return getDefaultStyle(type)
-}

frontend/src/lib/plantumlLanguage.ts

@@ -1,7 +1,7 @@
 import { StreamLanguage } from '@codemirror/language'
 
 /** Nunjucks block comment {# ... #} */
-function tokenNunjucksComment(stream: { match: (re: RegExp) => string | null; next: () => string; eol: () => boolean }) {
+function tokenNunjucksComment(stream: { match: (re: RegExp) => unknown; next: () => string | void; eol: () => boolean }) {
     if (stream.match(/^\{#/)) {
         while (!stream.eol()) {
             if (stream.match(/#\}/)) return 'comment'
@@ -13,7 +13,7 @@ function tokenNunjucksComment(stream: { match: (re: RegExp) => string | null; ne
 }
 
 /** Nunjucks variable {{ ... }} or tag {% ... %} - tokenize the whole block */
-function tokenNunjucksBlock(stream: { match: (re: RegExp) => string | null; next: () => string; eol: () => boolean }) {
+function tokenNunjucksBlock(stream: { match: (re: RegExp) => unknown; next: () => string | void; eol: () => boolean }) {
     if (stream.match(/^\{\{/)) {
         while (!stream.eol()) {
             if (stream.match(/\}\}/)) return 'variableName.special'