feat: [#377] Add JSON output to release command

[josecelano]

Summary

Closes #377. Part of epic #348 (Phase 2 — JSON output for all commands).

Adds --output-format json support to the release command, following the same Strategy Pattern established by the configure command (#371).

Changes

New: src/presentation/views/commands/release/

• view_data/release_details.rs — ReleaseDetailsData DTO with From<&Environment<Released>> conversion
• views/json_view.rs — JsonView::render() producing pretty-printed JSON
• views/text_view.rs — TextView::render() producing formatted human-readable text

Updated: Controller & Router

• src/presentation/controllers/release/handler.rs — execute() now accepts output_format: OutputFormat; release_application() returns Environment<Released> instead of discarding it; complete_workflow() uses Strategy Pattern
• src/presentation/controllers/release/tests.rs — updated existing tests to pass OutputFormat::Text
• src/presentation/dispatch/router.rs — passes output_format from context to controller
• src/presentation/views/commands/mod.rs — registered release module

JSON Output Example

{
  "environment_name": "my-env",
  "instance_name": "torrust-tracker-vm-my-env",
  "provider": "lxd",
  "state": "Released",
  "instance_ip": "10.140.190.101",
  "created_at": "2026-02-23T08:26:06.789141249Z"
}

Usage

torrust-tracker-deployer release my-environment --output-format json

Tests

• Unit tests for ReleaseDetailsData::from() (conversion + state string + IP presence)
• Unit tests for JsonView::render() (valid JSON, all fields, null IP)
• Unit tests for TextView::render() (all sections, not-available IP, formatted timestamp)
• All 2335 existing tests continue to pass
• All linters pass (markdown, yaml, toml, cspell, clippy, rustfmt, shellcheck)

Reference Implementation

Follows the pattern from configure command (src/presentation/views/commands/configure/).

[josecelano]

ACK e9a9209