feat(WebGL): auto-select wallet when only one adapter available

[mstevens843]

Status	Type	⚠️ Core Change	Issue
Ready	Feature	No	#273

Problem

LoginWalletAdapter() shows the wallet picker UI even when only one wallet adapter is available, forcing the user to tap through a single-option selection screen.
Documented as Point 1 in #273.

Solution

In SetCurrentWallet(), after InitWallets() populates the Wallets array, check if exactly one wallet is present. If so, assign it directly to _currentWallet and
return early, bypassing the picker UI entirely.

Null-safe — if Wallets is null or empty, the existing picker flow is preserved unchanged. Multi-wallet scenarios (2+ wallets) are also unchanged.

Scope: WebGL only. On Android, wallet selection is handled by the native MWA intent system. On iOS, it's hardcoded to Phantom. Neither goes through the SDK picker.

Changed file: Runtime/codebase/SolanaWalletAdapterWebGL/SolanaWalletAdapterWebGL.cs

Before & After Screenshots

BEFORE: Single-wallet picker UI shown, requiring a click to proceed.

AFTER: Wallet is auto-selected; login proceeds directly to the connection prompt.

Other changes (e.g. bug fixes, small refactors)

None. 4 lines added, 0 removed.

Deploy Notes

No new dependencies, scripts, or configuration changes.

Summary by CodeRabbit

• New Features
  • Wallet connection streamlined: when only one wallet is available, it now auto-selects without displaying the selection prompt, improving the setup experience.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 8564ba6a-f5b2-4dd8-934c-eae71bc0fa66

📥 Commits

Reviewing files that changed from the base of the PR and between 054503e and 4eaec55.

📒 Files selected for processing (1)

• Runtime/codebase/SolanaWalletAdapterWebGL/SolanaWalletAdapterWebGL.cs

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Walkthrough

The SetCurrentWallet() method now automatically assigns _currentWallet to the single available wallet adapter when exactly one exists, bypassing the UI selection flow. Previously, this method always displayed the UI and awaited user selection.

Changes

Cohort / File(s)	Summary
Wallet Selection Auto-Assignment Runtime/codebase/SolanaWalletAdapterWebGL/SolanaWalletAdapterWebGL.cs	Modified SetCurrentWallet() to automatically assign _currentWallet when exactly one wallet adapter is available, skipping the UI selection flow that previously always executed.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: auto-selecting a wallet when only one adapter is available on WebGL.
Description check	✅ Passed	The description comprehensively covers all required template sections including Problem, Solution, Before & After, Deploy Notes, and includes relevant context about scope and issue reference.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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