GRM-86: feat: add Polish as officially supported language

docs/tech/architecture.md

@@ -209,7 +209,7 @@ The Python CLI layer (`src/gitea_runner_manager/`) consists of the following mod
 | `runner_manager.py` | Ansible orchestration + registry integration — delegates to executor and manages runner lifecycle |
 | `executor.py` | Ansible subprocess execution — runs `ansible-playbook` with extra-vars via temp JSON files, streams output to log files |
 | `registry.py` | Local JSON runner registry at `~/.local/share/grm/runners.json` — stores connection metadata |
-| `i18n.py` | Internationalisation translations (en, bg, de, ru, zh) — opt-in via `GRM_LANG` environment variable |
+| `i18n.py` | Internationalisation translations (en, bg, de, ru, zh, pl) — opt-in via `GRM_LANG` environment variable |
 | `exceptions.py` | Custom exceptions (`GRMError`, `AnsibleError`, `APIError`) |
 | `config.py` | Configuration constants (API URLs, repo owner/name, project IDs) — overridable via environment variables |
 | `logging_config.py` | Logging configuration — writes all messages to `~/.local/state/grm/logs/grm.log` at DEBUG level |

docs/tech/development-setup.md

@@ -9,7 +9,7 @@
 │   ├── runner_manager.py          # Ansible orchestration + registry integration
 │   ├── executor.py                # Ansible subprocess execution
 │   ├── registry.py                # Local JSON runner registry
-│   ├── i18n.py                    # Translations (en, bg, de, ru, zh)
+│   ├── i18n.py                    # Translations (en, bg, de, ru, zh, pl)
 │   ├── exceptions.py              # Custom exceptions
 │   ├── config.py                  # Configuration constants
 │   ├── logging_config.py          # Logging to ~/.local/state/grm/logs/