[FIX] - Zero to hero tutorials

[nhussein11]

This PR fixes the zero to hero:

• Reorders the steps to add the pallet to the runtime before benchmarking, or it breaks
• Fixes snippets and highlights accordingly
• Pins the frame-omni-bencher to version 0.10.0 to prevent error[E0432]: unresolved import sc_network_types::kad

This is needed to work on #689

[Copilot]

Pull Request Overview

This PR ensures the Zero-to-Hero tutorials render correctly by pinning benchmark tooling, realigning code snippet references, and fixing navigation order.

• Pin frame-omni-bencher to version 0.10.0
• Update code snippet link ranges and highlight lines across tutorial markdowns
• Remove a mis-indented duplicate entry in the tutorial navigation

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
pallet-unit-testing.md	Adjusted snippet link line numbers by –1
pallet-benchmarking.md	Pinned bencher version; updated highlight line ranges
build-custom-pallet.md	Realigned snippet link ranges in examples
add-pallets-to-runtime.md	Updated snippet ranges; clarified build command context
.pages	Removed mis-indented duplicate navigation entry

Comments suppressed due to low confidence (1)

tutorials/polkadot-sdk/parachains/zero-to-hero/pallet-benchmarking.md:27

• Consider adding a reminder before step 1 that the pallet must be added to the runtime and the runtime recompiled first, e.g.: “Ensure you’ve added your pallet to the runtime and run cargo build before benchmarking to prevent breakage.”

1. Install the [`frame-omni-bencher`](https://crates.io/crates/frame-omni-bencher){target=\_blank} command-line tool:

[brunopgalvao]

Where to Go Next in the Pallet Unit Testing section should point to Add Pallets to the Runtime otherwise users will get errors when running benchmarks.

[Telucero]

Looks good!

[github-actions]

🔍 Documentation URL Checker

This PR modifies documentation files in ways that could potentially create broken links.

Deleted files:

develop/smart-contracts/dev-environments/foundry.md

🚨 Please review these changes carefully 🚨

If not handled properly, broken links (404 errors) could appear. To maintain a smooth user experience, consider:

• Adding redirects in the mkdocs.yml file from the old URLs to the new ones
• Updating internal references to these files

[Telucero]

Checked and everything seems good to go.