refactor(ssr): full Selmer migration of Transaction Edit; remove the wizard

Squashed Phase-2 SSR work: migrate the Transaction Edit modal's render path
entirely to Selmer templates (zero Hiccup in the render path), rip out the
multi-step wizard abstraction (EditWizard/LinksStep records, MultiStepFormState,
step-params[...] field names, mm/* middleware) in favor of a plain form with
flat derived state, and promote shared UI components to reusable Selmer partials
under resources/templates/components/. Adds the Selmer interop bridge, the
auto-ap.ssr.components.selmer (sc) wrapper library, and the ssr-form-migration
skill capturing the learnings.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

playwright.config.ts

@@ -1,5 +1,11 @@
 import { defineConfig, devices } from '@playwright/test';
 
+// Allow pointing the suite at an already-running test server (e.g. one booted from a
+// specific worktree on a non-default port) via BASE_URL. When BASE_URL is set we skip
+// the auto-started webServer entirely, so parallel worktrees don't fight over :3333.
+const baseURL = process.env.BASE_URL ?? 'http://localhost:3333';
+const useExternalServer = !!process.env.BASE_URL;
+
 export default defineConfig({
   testDir: './e2e',
   // These tests share a single stateful test server with one fixed dataset and
@@ -11,15 +17,17 @@ export default defineConfig({
   workers: 1,
   reporter: 'html',
   use: {
-    baseURL: 'http://localhost:3333',
+    baseURL,
     trace: 'on-first-retry',
   },
-  webServer: {
-    command: 'lein run -m auto-ap.test-server',
-    url: 'http://localhost:3333/test-info',
-    reuseExistingServer: !process.env.CI,
-    timeout: 120000,
-  },
+  webServer: useExternalServer
+    ? undefined
+    : {
+        command: 'lein run -m auto-ap.test-server',
+        url: 'http://localhost:3333/test-info',
+        reuseExistingServer: !process.env.CI,
+        timeout: 120000,
+      },
   projects: [
     {
       name: 'chromium',