feat: report file and remote mutations via structured action logger

[angeloashmore]

Resolves: #142

Description

Adds a structured action logger (src/lib/logger.ts) so commands can tell users (and AI agents) exactly which files and remote resources were mutated. Adapters and commands call reportAction at mutation sites; commands flushActions and formatAction to print details alongside their existing summary line.

Actions are a discriminated union (file-created/file-updated/file-deleted/remote-created/remote-updated/remote-deleted), so future --json and --quiet modes can format the same data differently without changing call sites.

Example output for prismic type create "Blog Post" --format page:

Created remote type "Blog Post"
Created customtypes/blog_post/index.json
Created app/blog-post/[uid]/page.tsx
Updated prismicio-types.d.ts
Created type "Blog Post" (id: "blog_post", format: "page")

Wired into the adapter base class (all seven CRUD methods), all three framework adapters (Next.js/Nuxt/SvelteKit hooks + setupProject helpers), and the following commands: type-create, slice-create, type-remove, slice-remove, gen-types, gen-setup, init, sync (both non-watch and watch modes).

Deferred to follow-up: field mutation commands (models.ts, field-add-*, etc.), webhook/preview/token commands, --json/--quiet flags themselves.

Checklist

• A comprehensive Linear ticket, providing sufficient context and details to facilitate the review of the PR, is linked to the PR.
• If my changes require tests, I added them.
• If my changes affect backward compatibility, it has been discussed.
• If my changes require an update to the CONTRIBUTING.md guide, I updated it.

Preview

How to QA

• prismic type create Foo --format page — confirm file paths and remote action print before the summary
• prismic slice create Hero — same
• prismic gen types — confirm Updated prismicio-types.d.ts prints
• prismic sync --watch — confirm actions flush per cycle (no accumulation)
• prismic init in a fresh Next.js/Nuxt/SvelteKit project — confirm all generated files are listed