feat: add check command for cloud firmware fetching (v3.0.0)

- Add `check [--verbose/-v]` command that fetches the latest firmware for all
  module hardware versions from firmware.gocontroll.com into /lib/firmware/gocontroll/
- SHA256 checksum validation for every downloaded firmware file; re-downloads if
  local file is missing or checksum does not match
- Verbose flag shows release date and changelog per module
- check runs before hardware/service detection so it works on any networked system
- check is also available from the interactive TUI menu
- Fix typos: "Succesfully" → "Successfully" throughout
- Add reqwest, serde, sha2, hex dependencies

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Rick-GO

CHANGELOG.md

@@ -1,3 +1,16 @@
+v3.0.0
+ - Added `check` command: fetches the latest firmware for all module hardware versions
+   from the GOcontroll cloud (firmware.gocontroll.com) into /lib/firmware/gocontroll/
+ - SHA256 checksum validation for all downloaded firmware files
+ - Use `check --verbose` (or `-v`) to display release dates and changelogs
+ - Fixed typos in output messages
+
+v2.2.0
+ - Debian 11 compatibility improvements
+
+v2.1.0
+ - Added Multibus module support
+
 v2.0.0
  - Firmware locations have been moved to /lib/firmware/gocontroll/
  - The modules file has been moved to /lib/gocontroll/modules

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "go-modules"
-version = "2.2.0"
+version = "3.0.0"
 edition = "2021"
 license = "MIT"
 repository = "https://github.com/GOcontroll/go-modules"
@@ -31,6 +31,10 @@ ctrlc = "3.4.5"
 tokio = { version = "1.43.0", features = ["rt", "macros", "time", "rt-multi-thread"]}
 gpio-cdev = { version = "0.6", features = ["async-tokio"]}
 futures = "0.3.31"
+reqwest = { version = "0.12", features = ["json"] }
+serde = { version = "1.0", features = ["derive"] }
+sha2 = "0.10"
+hex = "0.4"
 
 [package.metadata.deb]
 depends = ["libc-bin"]