Add Polkadot Solidity tab [WIP]

[ericglau]

Adds a Polkadot tab based on Solidity, with the following differences:

• Omit Account tab due to native account abstraction being available in Polkadot
• Omit Superchain specific functionality
• Temporarily omit Governor, ERC20/721 Votes, and ERC20Permit due to those requiring ECDSA and ecrecover. Requires further investigation.
• Omits Download Foundry package.
• Change "Open in Remix" to "Open in Polkadot Remix" with different URL.

Remaining to do:

• Override available options in the model (e.g. remove ERC20 permit so it does not appear by default)
• Override available contracts for AI Assistant
• Override Download Hardhat package function?
  • Determine if Polkadot Hardhat plugins should be enabled on the generated project
  • Determine if Polkadot specific configuration are needed in the Hardhat config, such as for the local Hardhat development network. If so, what should be the configuration settings?
  • Determine if Polkadot specific changes are needed for generated tests or deployment scripts
  • When Upgradeability is enabled, the downloaded Hardhat package includes OpenZeppelin Hardhat Upgrades plugin. Test if it works with Polkadot networks.
• Determine if Governor/votes/permit should be re-enabled at any point before release.
• Determine if any Polkadot-specific MCP tools are desired for Solidity.

Summary by Sourcery

Add a Polkadot tab to the Contracts Wizard by reusing the Solidity flow with custom overrides that disable unsupported features and adjust UI components, and update navigation, theming, and app initialization to support the new Polkadot context

New Features:

• Introduce Polkadot as a new app type in the contracts wizard
• Add a standalone Polkadot HTML page and Svelte PolkadotApp that wraps the existing SolidityApp with Polkadot-specific overrides
• Extend selection and initialization logic in main.ts to recognize “polkadot” and launch PolkadotApp
• Provide navigation switch links and icon assets for Polkadot in the UI

Enhancements:

• Implement an Overrides API to omit tabs, features, and adjust button labels/links (e.g., hide Account and Governor tabs, rename “Open in Remix” to “Open in Polkadot Remix”, disable Download Foundry)
• Make controls components accept an omitFeatures prop to conditionally hide superchain, permit, and votes options
• Update App.svelte to apply overrides for feature visibility and button visibilities
• Add Polkadot theme variables and CSS styling for the active Polkadot tab

Chores:

• Add removeUnsupportedFeatures utility to strip unsupported options from generic wizard options

[sourcery-ai]

Reviewer's Guide

This PR integrates a new Polkadot tab into the existing Solidity wizard by parameterizing and overriding key UI features, routing logic, and deployment buttons. It layers in an Overrides API to omit unsupported features and tabs, adapts the remix integration for Polkadot Remix URLs, and injects Polkadot-specific assets (HTML, CSS, icons) while keeping the original Solidity code paths largely intact.

Class diagram for removeUnsupportedFeatures utility

classDiagram
    class removeUnsupportedFeatures {
      +removeUnsupportedFeatures(opts: GenericOptions): GenericOptions
    }
    class GenericOptions {
      kind: string
      permit: boolean
      votes: boolean
      crossChainBridging: string | boolean
    }
    removeUnsupportedFeatures --> GenericOptions

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File-Level Changes

Change	Details	Files
Add Polkadot platform integration and routing	Register "polkadot" in main.ts evaluation and instantiate PolkadotApp Introduce public/polkadot.html and insert Polkadot switch links in existing HTML shells Ship new Polkadot HTML, CSS, and icon assets for nav and theme	src/main.ts public/*.html public/icons/polkadot.svg public/icons/polkadot_active.svg
Implement Overrides API in solidity/App	Define Overrides and defaultOverrides in overrides.ts Add overrides prop to App.svelte and propagate to getButtonVisibilities Extend remixURL to consume overrideRemixURL and update Open button label Use overrides.omitTabs to hide Account/Governor buttons and overrides.omitZipFoundry to suppress Foundry zip Pass overrides.omitFeatures map into each control component	src/solidity/App.svelte src/solidity/remix.ts src/solidity/overrides.ts
Enable omitFeatures flagging in control components	Add omitFeatures prop to ERC20, ERC721, Stablecoin, RealWorldAsset controls Wrap superchain tooltip initialization and show calls with omitFeatures conditions Guard Permit and Votes sections behind omitFeatures.includes checks	src/solidity/ERC20Controls.svelte src/solidity/RealWorldAssetControls.svelte src/solidity/StablecoinControls.svelte src/solidity/ERC721Controls.svelte
Adapt UI theme and styles for Polkadot	Declare --polkadot-pink CSS variable and switch-polkadot active style Insert Polkadot switch in nav bars across standalone.css and vars.css Add theme overrides in Polkadot App.svelte for tab highlight	src/standalone.css src/common/styles/vars.css public/*.html src/polkadot/App.svelte
Add utility for removing unsupported features	Create removeUnsupportedFeatures.ts to strip permit, votes, superchain when applicable Define Overrides interface in overrides.ts alongside defaultOverrides	src/polkadot/remove-unsupported-features.ts src/solidity/overrides.ts

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