refactor: APIs-first architecture with unified config and fabrica.Metadata

- Eliminate pkg/resources/ and apis/ redundancy in versioned mode
- Merge apis.yaml into .fabrica.yaml (single config)
- Add fabrica.Metadata type alias for cleaner imports
- New commands: `fabrica add version`, versioned `fabrica init`
- Generator discovers resources from apis/<group>/<storage-version>/
- Complete example 8 rewrite with working project structure
- Flattened envelope: explicit APIVersion, Kind, Metadata fields

Breaking: Versioned projects now define types directly, no generation
Signed-off-by: Alex Lovell-Troy <alex@lovelltroy.org>

Author: alexlovelltroy

.reuse/dep5

@@ -0,0 +1,22 @@
+version = 1
+SPDX-PackageName = "Fabrica"
+SPDX-PackageSupplier = "OpenCHAMI <info@openchami.org>"
+SPDX-PackageDownloadLocation = "https://github.com/openchami/fabrica"
+
+[[annotations]]
+path = "docs/_posts/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2025 OpenCHAMI Contributors"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "docs/blog/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2025 OpenCHAMI Contributors"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = ["docs/guides/**", "docs/reference/**", "docs/**.md"]
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2025 OpenCHAMI Contributors"
+SPDX-License-Identifier = "MIT"