feat: verify and enhance compatibility with Zabbix 6.0, 6.2, 6.4, and 7.0

This commit comprehensive updates the API to ensure full compatibility across all major Zabbix versions (6.0 LTS, 6.2, 6.4, and 7.0 LTS) and introduces a local development environment for multi-version testing.

Verified Zabbix Versions:
- Zabbix 7.0 (LTS): Full support, including native `history.push` for telemetry.
- Zabbix 6.4: Supported (excluding `history.push`); uses `hostgroup.propagate` and UUID-based matching.
- Zabbix 6.2: Supported (excluding `history.push`); uses `hostgroup.propagate` and `templategroup.*` methods.
- Zabbix 6.0 (LTS): Supported (excluding `history.push`); includes specific fallbacks:
    - JSON-RPC: Restored `auth` field in request body for versions lacking Bearer token support.
    - Permissions: Implemented name-based fallback for host/template groups (no UUIDs in 6.0).
    - Group Expansion: Automatic manual expansion of group rights during import.
    - API Methods: Fallback from `templategroup.*` to `hostgroup.*` methods.

Key Technical Changes:
- Local Development: Added `zabbix-local` Docker Compose profile to launch a complete Zabbix stack (Server, Web, Postgres) from scratch with dynamic versioning via `ZABBIX_VERSION`.
- Query Optimization: Refined dynamic field selection to handle implied fields and ensure consistent output regardless of initial Zabbix parameters.
- Documentation:
    - New `local_development.md` HOWTO guide.
    - Updated `README.md` with detailed version compatibility matrix.
    - Expanded `roadmap.md` with achieved milestones.
- Testing:
    - Updated entire Jest test suite (23 suites, 96 tests) to be version-aware and robust against naming collisions.
    - Enhanced Smoketest and Regression Test executors with better cleanup and error reporting.

.gitignore

@@ -74,10 +74,7 @@ web_modules/
 
 # dotenv environment variable files
 .env
-.env.development.local
-.env.test.local
-.env.production.local
-.env.local
+.env.*
 
 # parcel-bundler cache (https://parceljs.org/)
 .cache