Fix critical TypeScript, build, and linter issues

[Copilot]

This PR addresses several critical issues that were preventing the project from building and passing type checks:

🔧 Build Issues Fixed

Session Password Configuration: The build was failing with "Password string too short (min 32 characters required)" during prerendering. Updated the default session password in config.ts to meet the 32+ character requirement for iron-webcrypto.

🔍 TypeScript Issues Fixed

Zod Validation Types: Fixed complex type constraint issues in apollo/validation.ts by simplifying the approach:

• Removed overly complex Properties<T> type mapping that was causing generic constraint errors
• Replaced with direct Zod schema definitions for SignupInputSchema and LoginInputSchema
• This eliminates 5+ TypeScript errors related to Zod type internals

Import Issues: Fixed missing AnyZodObject export by replacing it with the correct ZodObject type in server/utils/validation.ts.

Form Type Safety: Enhanced type safety in the login form by adding computed properties to properly cast form field values for naive-ui component compatibility.

🧹 Linter & Test Fixes

Code Formatting: Fixed Prettier formatting issues in modified files.

Test Snapshots: Updated test snapshots to match the new Zod error format:

• Error objects now include origin field instead of exact and type fields
• Updated validation messages to match current Zod version

Unused Imports: Removed unused ZodRawShape import that was flagged by oxlint.

✅ Verification

All critical checks now pass:

• ✅ pnpm build - Builds successfully without errors
• ✅ pnpm typecheck - No TypeScript errors
• ✅ pnpm lint - No linting errors (warnings are acceptable)
• ✅ pnpm test:unit - All unit tests pass (19/19)

The changes are minimal and surgical, focusing only on fixing the blocking issues without altering working functionality.

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