refactor: rename API and frontend projects to Vocero

Rename the project directories, Python distribution and import package, and npm package. Update launcher, Docker, tooling, tests, lockfiles, and documentation while preserving existing API contracts.

Make AGENTS.md self-contained and remove external skill and workflow references.

vocero-api/.pre-commit-config.yaml

@@ -0,0 +1,27 @@
+minimum_pre_commit_version: "4.4.0"
+default_install_hook_types: [pre-commit]
+default_stages: [pre-commit]
+
+repos:
+  - repo: local
+    hooks:
+      - id: ruff-check
+        name: Ruff lint
+        entry: uv run --project vocero-api --locked ruff check --force-exclude
+        language: unsupported
+        types_or: [python, pyi]
+        files: ^vocero-api/
+        require_serial: true
+      - id: ruff-format
+        name: Ruff formatting
+        entry: uv run --project vocero-api --locked ruff format --check --force-exclude
+        language: unsupported
+        types_or: [python, pyi]
+        files: ^vocero-api/
+        require_serial: true
+      - id: mypy
+        name: Python types
+        entry: uv run --directory vocero-api --locked mypy
+        language: unsupported
+        pass_filenames: false
+        files: ^vocero-api/(vocero_api/|server\.py|pyproject\.toml|uv\.lock)