fix: allow tilde in inline JSON input

[kuntal1461]

Fixes #1281

Summary

• Allow inline JSON passed through --input to contain ~, including Actor IDs such as username~actor-name.
• Preserve the existing validation for home-directory-style paths such as ~/input.json and ~user/input.json.
• Add regression coverage at both the input resolver level and the local CLI apify run --input flow.

Validation

• pnpm exec vitest run test/local/lib/resolve-input.test.ts
• pnpm exec vitest run test/e2e/commands/actor/run-input.test.ts
• pnpm run format
• pnpm run lint
• pnpm run build
• pnpm run test:local