Standardize interactions with apps, secrets, teams

[bradhe]

We've got some drift across the different commands in terms of how parameters are extracted, how users supply parameters to commands, etc. This PR standardizes most (all?) of the existing interactions.

[Copilot]

Pull Request Overview

This PR standardizes interactions with Tower commands by unifying parameter extraction and renaming functions for apps, secrets, and teams. Key changes include introducing a new utility module for flag extraction, renaming command handler functions for consistency, and updating error messages and help texts across the commands.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
crates/tower-cmd/src/util/mod.rs	New module "cmd" added to support flag extraction across commands
crates/tower-cmd/src/util/cmd.rs	Added helper functions get_string_flag and get_bool_flag for standardization
crates/tower-cmd/src/teams.rs	Renamed functions and extracted team slug parsing logic
crates/tower-cmd/src/secrets.rs	Updated flag extraction and function names to match new conventions
crates/tower-cmd/src/lib.rs	Updated command dispatch to use the new standardized command handler names
crates/tower-cmd/src/apps.rs	Renamed and updated functions and help messages for improved consistency

Comments suppressed due to low confidence (1)

crates/tower-cmd/src/apps.rs:16

• There is a stray backtick in the help text of the list subcommand. Removing the backtick will improve clarity.

.subcommand(Command::new("list").about("List all of your apps`")