v0.2.0 (3/N): extract Maker shared helpers (NameInput, Naming)

DRY pass identified by the post-v0.1.2 audit: every make:bridge:*
maker re-implemented the same "prompt, trim, ucfirst, reject empty"
closure in interact(), and the camel-case-to-separator regex was
duplicated between BridgeResourceMaker (`_`-joined route plurals)
and BridgeCommandMaker (`-`-joined kebab slugs).

Two helpers under PhpQml\Bridge\Maker\Support:
  - NameInput::askOrFail() — replaces 3× inline closures
  - Naming::camelTo($name, $separator) — replaces 2× inline regexes

All 3 makers now go through the helpers; behaviour preserved
(maker snapshot test still passes — generated Todo / TodoController
/ TodoList / MarkAllDoneController / TodoWindow byte-identical to
the v0.1.2 baselines).

NamingTest covers the documented cases plus a regression case for
acronyms (HTTPClient → h-t-t-p-client; the regex splits at every
internal capital, which is correct for the route-slug use case).

Test count 17 → 23, all passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

framework/php/src/Maker/Support/NameInput.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpQml\Bridge\Maker\Support;
+
+use Symfony\Bundle\MakerBundle\ConsoleStyle;
+use Symfony\Component\Console\Input\InputInterface;
+
+/**
+ * Shared interactive name prompt for the bridge makers.
+ *
+ * Every `make:bridge:*` maker takes a single CamelCase `name` argument
+ * and re-implemented the same "prompt, trim, ucfirst, reject empty"
+ * closure inline. This collapses that into one call site so the empty-
+ * argument and validation behaviour stay in lockstep across makers.
+ */
+final class NameInput
+{
+    /**
+     * Fill the named argument from an interactive prompt if it isn't set.
+     *
+     * The closure-based validator throws `\RuntimeException` on empty input,
+     * which Maker-bundle's `ConsoleStyle::ask()` interprets as "render
+     * error, re-prompt" rather than aborting — same behaviour as the
+     * inline closures it replaces.
+     */
+    public static function askOrFail(
+        InputInterface $input,
+        ConsoleStyle $io,
+        string $argument,
+        string $question,
+        string $errorMessage = 'Name cannot be empty.',
+    ): void {
+        if (null !== $input->getArgument($argument)) {
+            return;
+        }
+
+        $value = $io->ask($question, null, static function (?string $v) use ($errorMessage): string {
+            if (null === $v || '' === trim($v)) {
+                throw new \RuntimeException($errorMessage);
+            }
+
+            return ucfirst(trim($v));
+        });
+        $input->setArgument($argument, $value);
+    }
+}