fix: Speed up startup time from 5s -> 10ms (500x faster)

[frol]

Unblock #408, see #408 (comment)

clap-rs/clap#6225 was not accepted to the upstream, so I forked clap into a drop-in replacement fast_clap with the fix that allows us to make the CLI to run instantaneously.

On my MacBook M1 Pro the release CLI start time dropped from 5 seconds to 10 milliseconds. There are no side effects, so it is just faster and no downsides.

[frol]

@race-of-sloths include

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Current status: executed

Reviewer	Score
@r-near	13

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[Copilot]

Pull request overview

This PR aims to reduce CLI startup time by replacing the clap dependency with a fork (fast_clap) that includes an upstream-unaccepted performance fix.

Changes:

• Replace clap with fast_clap in Cargo.toml.
• Update Cargo.lock to remove clap/clap_derive and add fast_clap/fast_clap_derive.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 1 comment.

File	Description
Cargo.toml	Swaps the CLI argument parsing dependency from clap to fast_clap.
Cargo.lock	Regenerates the lockfile to reflect the new fast_clap dependency graph.

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[race-of-sloths]

🥁 Score it!

@r-near, please score the PR with @race-of-sloths score [1/2/3/5/8/13]. The contributor deserves it.
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[r-near]

@race-of-sloths 13 for all the clap work