Add pull-files and pull-db commands

[adamziel]

Summary

Adds two higher-level commands:

• pull-files, which runs the same retrying file-download stage used by pull
• pull-db, which runs the same retrying database-download stage used by pull

The full pull pipeline now delegates its file and database stages through those higher-level methods instead of calling the lower-level files-pull / db-pull handlers directly. Command help and option grouping include the new commands.

Tests

• PATH="$PWD/.context/test-bin:$PATH" php -n vendor/bin/phpunit --configuration tests/phpunit.xml tests/Import/PullFilterOptionTest.php tests/Import/PullStartModeTest.php tests/Import/LegacyCommandAliasTest.php tests/Import/OnlyCliParseTest.php --testdox --colors=never
• php -n -l packages/reprint-importer/src/import.php
• php -n -l packages/reprint-importer/src/lib/pull/class-pull.php
• php -n -l tests/Import/PullFilterOptionTest.php
• PATH="$PWD/.context/test-bin:$PATH" php -n /Users/cloudnik/.local/bin/composer analyze

Notes

• composer test is not clean in this workspace because the MySQL-backed tests cannot connect to 127.0.0.1 (SQLSTATE[HY000] [2002] Connection refused).
• composer lint:php still reports existing PHPCS issues across the repository unrelated to this change.

[github-actions]

Pull pipeline performance — large-directory

Site: large-directory · 2,000+ plus targeted file-transfer scenarios files · 10,000 posts · 25,000 postmeta · PHP 8.5.7

trunk baseline unavailable — showing PR numbers only.

Stage	Wall time	Resume attempts	Status	Details
playground-sqlite-db-download	7.45 s	1	✓	condition=db-download in PHP.wasm runtime=php.wasm 8.3 wp_mysql_parser=enabled mode=lexer native_lexer=verified native_token_stream=WP_MySQL_Native_Token_Stream native_token_count=18 native_parser=selected
playground-sqlite-db-apply	2.82 s	1	✓	condition=db-apply to SQLite in PHP.wasm runtime=php.wasm 8.3 wp_mysql_parser=enabled mode=parser native_lexer=verified native_token_stream=WP_MySQL_Native_Token_Stream native_token_count=18 native_parser=verified native_ast=WP_MySQL_Native_Parser_Node sqlite_driver_parser=verified
Total	10.27 s

_{Numbers carry runner noise; treat single-run deltas as directional, not authoritative.}

_{📈 Trunk performance history — commit-by-commit timeline.}