Feature/cli

[cchirag]

Overhauled CLI, introduced gova.json, and unified build/run internals

This PR marks a significant shift in how Gova works, moving from a flag-heavy CLI to a centralised, file-driven configuration model.

gova.json

Introduces a new init command that scaffolds a gova.json file in the project root, similar in spirit to pubspec.yaml. All commands now depend on this file, making project configuration reproducible, portable, and consistent across systems.

Modes

gova.json supports named build modes (e.g. dev, prod). Each mode carries its own build flags, environment variables, and env files, giving fine-grained control over the build process per environment. All commands (build, run, dev) accept a --mode flag that defaults to gova-dev, injected at parse time.

Builder and runner

Extracted dedicated build and run methods that are shared across commands, replacing the earlier ad-hoc CLI implementation with something more consistent and testable.

File watcher

gova.json supports an ignore field accepting paths and glob patterns. This prevents watching output directories and other non-essential paths, avoiding infinite rebuild loops.

CLI

Hardened the overall CLI implementation to be more robust and less flaky compared to the previous approach.

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Keeping this a learning project, AI was used solely for generating package and function documentation. All logic is human written.

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