CLI - Confirm before publishing to non-local servers

[bfops]

Description of Changes

When publishing to a server besides localhost or 127.0.0.1, prompt for confirmation.

API and ABI breaking changes

Yes; this technically breaks the CLI API for publishing to non-local servers.

Expected complexity level and risk

1

Testing

• Publishing to testnet prompts for confirmation; saying no exits

$ "$WORK"/SpacetimeDBPrivate/public/target/debug/spacetime publish -s testnet
checking crate with spacetimedb's clippy configuration
    Checking spacetime-module v0.1.0 (/mnt/nutera/work/my_new_project)
    Finished `release` profile [optimized] target(s) in 0.14s
    Finished `release` profile [optimized] target(s) in 0.11s
Optimising module with wasm-opt...
Could not find wasm-opt to optimise the module.
For best performance install wasm-opt from https://github.com/WebAssembly/binaryen/releases.
Continuing with unoptimised module.
Build finished successfully.
You are about to publish to a non-local server: testnet.spacetimedb.com
Are you sure you want to proceed with publishing to testnet.spacetimedb.com? [y/N]N
Aborting

• Publishing to testnet prompts for confirmation; saying yes proceeds

$ "$WORK"/SpacetimeDBPrivate/public/target/debug/spacetime publish -s testnet
checking crate with spacetimedb's clippy configuration
    Checking spacetime-module v0.1.0 (/mnt/nutera/work/my_new_project)
    Finished `release` profile [optimized] target(s) in 0.14s
    Finished `release` profile [optimized] target(s) in 0.07s
Optimising module with wasm-opt...
Could not find wasm-opt to optimise the module.
For best performance install wasm-opt from https://github.com/WebAssembly/binaryen/releases.
Continuing with unoptimised module.
Build finished successfully.
You are about to publish to a non-local server: testnet.spacetimedb.com
Are you sure you want to proceed with publishing to testnet.spacetimedb.com? [y/N]y
Uploading to testnet => https://testnet.spacetimedb.com
Publishing module...
Created new database with identity: c20021c74f423a19aedc5fef2ab5adc66b4b5a556a031ee15c56e5ab6ff2f381

• Publishing to local does not prompt for confirmation

$ "$WORK"/SpacetimeDBPrivate/public/target/debug/spacetime publish -s local
checking crate with spacetimedb's clippy configuration
    Checking spacetime-module v0.1.0 (/mnt/nutera/work/my_new_project)
    Finished `release` profile [optimized] target(s) in 0.14s
    Finished `release` profile [optimized] target(s) in 0.07s
Optimising module with wasm-opt...
Could not find wasm-opt to optimise the module.
For best performance install wasm-opt from https://github.com/WebAssembly/binaryen/releases.
Continuing with unoptimised module.
Build finished successfully.
Uploading to local => http://127.0.0.1:3000
Publishing module...
Created new database with identity: c2004b18ef1e1a3240db78883f52a588b1bb9ccd80692b8b1cccc913f32203ab

[cloutiertyler]

Looks great to me!