Add sccache to development.md prerequisites

[fuleinist]

Problem

src-tauri/.cargo/config.toml uses rustc-wrapper = "sccache" to speed up Rust builds, but development.md's Quick Start does not mention installing sccache. Contributors following the docs will hit a silent failure on first clone.

Solution

• Add sccache to the list of required tools in the Quick Start section
• Add a note explaining what sccache is and how to install it

Use case

First-time contributors cloning the repo will get a working Rust toolchain without trial-and-error debugging.

Closes #715

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Note

Low Risk
Low risk documentation-only change; no code or runtime behavior is modified.

Overview
Updates docs/development.md Quick Start prerequisites to include sccache and adds a note with install instructions, aligning the setup docs with the Rust build’s rustc-wrapper = "sccache" configuration.

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[cjroth]

We reorganized the docs since you submitted this, but this is a needed update. If you want to update the PR to the latest main branch, I can merge it.

[cjroth]

Thanks for the suggestion! Would it make sense to recommend cargo install sccache here?

[cjroth]

Actually - can we move this to the sh section below as a command with a command instead?

[cjroth]

Actually - can we move this to the sh section below as a command with a command instead?

[fuleinist]

Thanks for the review @cjroth! I've addressed the merge conflict and created a new PR #768 that targets the current main branch.

Since docs/development.md was reorganized into docs/development/quick-start.md in THU-391, I've integrated the sccache prerequisite note into the Prerequisites section there.

The change in #768 is a single line addition:

- **sccache** — speeds up Rust rebuilds. Install with `cargo install sccache`. Configured in `src-tauri/.cargo/config.toml`.

Happy to close #719 in favour of #768, or merge both — just let me know!

[cjroth]

Great - just merged #768. Appreciate the help.