Add `--verbose` Flag and Debug Logging

[Josephat-S]

What to build

Add a --verbose flag that shows detailed output during generation: which files are being processed, which Handlebars tags are being replaced, which dependencies are being injected, and timing information.

Files to modify

• src/generate.js
• src/dependencies.js
• index.js

Specs

• Normal mode: only spinners and success/fail messages (current behavior).
• Verbose mode: log every file processed, every dependency injected, timing for each phase.
• Format: [phase] action — detail (e.g., [compile] Processing — app/layout.tsx (3 tags replaced)).

Acceptance criteria

• opusify create --verbose shows detailed file-by-file output.
• Each phase shows timing (e.g., "Template compilation: 120ms").
• Dependency injection logs which packages were added and why.
• Normal mode (no flag) remains clean with just spinners.

Dependencies

• CLI Flag Support (Non-Interactive Mode) #39