refactor(2meet-data-optimizer-hivepress-addon): remove TMDO_HPCT_Import

- Delete the HPCT importer (no caller left after core dropped HPCT in PR-020c) and its bootstrap/alias/test-bootstrap entries
- Conflict guard notice, log line and HivePress admin tab no longer point to the never-existing `wp wpdo hivepress migrate-from-hpct`; they say to deactivate the legacy plugins (their own tables are not imported)
- Verify: ConflictGuardTest guard; HP unit 146 / integration 49 OK, bootstrap smoke OK
- PR: PR-020d

tests/bootstrap.php

@@ -46,7 +46,6 @@ $tmdo_hp_files = array(
 	'includes/class-tmdo-hivepress-transient-filter.php',
 	'includes/class-tmdo-hivepress-term-comment-fields.php',
 	'includes/class-tmdo-hivepress-entity-groups.php',
-	'includes/class-tmdo-hpct-import.php',
 	'includes/class-tmdo-listing-stats.php',
 	'admin/class-tmdo-admin-hivepress.php',
 	'cli/class-tmdo-cli-hivepress.php',

tests/integration/bootstrap.php

@@ -45,7 +45,6 @@ $tmdo_hp_files = array(
 	'includes/class-tmdo-hivepress-transient-filter.php',
 	'includes/class-tmdo-hivepress-term-comment-fields.php',
 	'includes/class-tmdo-hivepress-entity-groups.php',
-	'includes/class-tmdo-hpct-import.php',
 	'admin/class-tmdo-admin-hivepress.php',
 	'cli/class-tmdo-cli-hivepress.php',
 );

tests/unit/ConflictGuardTest.php

@@ -47,6 +47,16 @@ class HivePressConflictGuardTest extends TestCase {
 		$this->assertSame( '', $out );
 	}
 
+	public function test_guidance_does_not_point_to_a_missing_command(): void {
+		// There is no HPCT importer: `wp wpdo hivepress migrate-from-hpct` never
+		// existed and TMDO_HPCT_Import had no caller once core dropped HPCT.
+		$root = dirname( __DIR__, 2 );
+		foreach ( array( 'includes/hivepress/class-tmdo-hivepress-conflict-guard.php', 'admin/class-tmdo-admin-hivepress.php' ) as $file ) {
+			$this->assertStringNotContainsString( 'migrate-from-hpct', (string) file_get_contents( $root . '/' . $file ), $file );
+		}
+		$this->assertFileDoesNotExist( $root . '/includes/class-tmdo-hpct-import.php' );
+	}
+
 	public function test_memo_cache_avoids_repeat_probing(): void {
 		WPDO_HivePress_Conflict_Guard::reset_for_tests();
 		$first  = WPDO_HivePress_Conflict_Guard::detect_conflicts();