Add spell checking

[rkeene]

This change adds spell checking to the Anchor linting project to ensure PRs have correctly spelled words.

[Copilot]

Pull request overview

This PR adds spell checking capabilities to the Anchor project's linting workflow using cspell. The typo fix in src/lib/resolver.ts (changing "acccount" to "account") demonstrates the value of this addition.

Changes:

• Fixed typo in comment: "acccount" → "account" in resolver.ts
• Added cspell and related dependencies to the project
• Integrated cspell into the Makefile's do-lint target

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/lib/resolver.ts	Fixed spelling error in JSDoc comment
package.json	Added cspell dependencies and npm script
package-lock.json	Lockfile updates for cspell packages and dependencies
Makefile	Integrated cspell command into do-lint target
.cspell.config.mjs	Main cspell configuration with project-specific word list
.cspell-ext.json	TypeScript dictionary import configuration

[sonarqubecloud]

Quality Gate failed

Failed conditions
D Maintainability Rating on New Code (required ≥ A)

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