v0.1.3

Adds models.dev destinations and per-response token cost estimation, with default routing for 196 catalog providers and two Hub instances.

• Preserve each response's model and usage, deduplicate delayed usage replays, and retry failed price lookups independently.
• Separate billing snapshots, currency presentation, shared data retrieval, and request scheduling; preserve original billing currencies when conversion is unavailable.
• Add a Linux installer with upgrade/removal support and correct selection of pre-releases.
• Improve configuration merge validation and missing-file diagnostics, remove redundant catalog metadata, and clarify resume commands.

Validation: 51 unit tests and the distribution integration test passed; formatting and Clippy passed. Release CI builds macOS Apple Silicon and Linux x86_64/ARM64 archives, Debian packages, and SHA-256 checksums, and verifies Linux installation, upgrade, and removal.

Full changes: v0.1.2...v0.1.3