refactor: rename lib/ to core/ for clearer core-module separation

Rename the top-level lib/ directory to core/ so the project root
immediately communicates which code is core platform and which lives
in modules/. PHP namespaces (MintyPHP\*) are unchanged — only the
Composer PSR-4 path mapping moves from lib/ to core/.

Module-internal lib/ directories (modules/*/lib/) are untouched.

Updated across the full stack:
- composer.json PSR-4 mapping
- bootstrap entry points (web/index.php, bin/*, tests/bootstrap.php)
- tooling configs (phpstan.neon, phpunit.xml, php-cs-fixer)
- 26 architecture contract tests
- enforcement-policy, guard-catalog, quality-gates
- all documentation (CLAUDE.md, README, 25 docs/, .agents/skills/)
- bin/qa-extended.sh search paths
- .claude/settings.local.json permission paths

Workflow: .agents/runs/CORE-LIB-RENAME-001/ (Analyst → Planner →
Executor → Code Review (4 findings fixed) → Security Review →
Acceptance Test → Finalizer)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/Console/Runner/Module/ModuleRunnerInterface.php

@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MintyPHP\Console\Runner\Module;
+
+interface ModuleRunnerInterface
+{
+    /**
+     * @return array{command: string, status: string, exit_code: int, vendor_warnings_ignored: int, message: string}
+     */
+    public function migrate(): array;
+
+    /**
+     * @return array{
+     *   command: string,
+     *   status: string,
+     *   exit_code: int,
+     *   vendor_warnings_ignored: int,
+     *   created: int,
+     *   updated: int,
+     *   unchanged: int,
+     *   deactivated: int,
+     *   total: int,
+     *   message: string
+     * }
+     */
+    public function permissionsSync(): array;
+
+    /**
+     * @return array{
+     *   command: string,
+     *   status: string,
+     *   exit_code: int,
+     *   vendor_warnings_ignored: int,
+     *   core_entries: int,
+     *   module_entries: int,
+     *   message: string
+     * }
+     */
+    public function build(): array;
+
+    /**
+     * @return array{
+     *   command: string,
+     *   status: string,
+     *   exit_code: int,
+     *   vendor_warnings_ignored: int,
+     *   mode: string,
+     *   created: int,
+     *   updated: int,
+     *   removed: int,
+     *   unchanged: int,
+     *   message: string
+     * }
+     */
+    public function assetsSync(): array;
+
+    /**
+     * @return array{
+     *   command: string,
+     *   status: string,
+     *   exit_code: int,
+     *   vendor_warnings_ignored: int,
+     *   message: string
+     * }
+     */
+    public function deactivate(string $moduleId, bool $confirm, bool $dryRun): array;
+
+    /**
+     * @return array{
+     *   command: string,
+     *   status: string,
+     *   exit_code: int,
+     *   vendor_warnings_ignored_total: int,
+     *   duration_ms: int,
+     *   steps: array<string, array{status: string, exit_code: int, vendor_warnings_ignored: int}>,
+     *   message: string
+     * }
+     */
+    public function runtimeSync(): array;
+}