feat(schemas): custom schema authoring (#275)#306
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Adds a SchemaRegistry that loads built-in YAML bundles via include_str!
and discovers custom schemas under .lean-spec/schemas/, resolves
extends-based inheritance with cycle detection, and protects the
reserved leanspec: prefix from being shadowed by project files.
Surfaces it through a new `leanspec schema {list, show, validate}`
subcommand, an optional `schema_id` on AdapterConfig, a `--schema` flag
on `leanspec create`, and has `leanspec init` scaffold the
`.lean-spec/schemas/` directory.
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Summary
Implements #275 — custom schema authoring for LeanSpec.
SchemaRegistryinleanspec-corethat:leanspec:base,leanspec:feature,leanspec:bug,leanspec:adr) viainclude_str!<project_root>/.lean-spec/schemas/*.yamlextends-based inheritance (child fields/link types override parent by key) with circular-inheritance detectionleanspec:prefix — custom files claiming a built-in id are skipped with a warningleanspec schemaCLI subcommand:schema list— built-in + custom, with field counts andextendsparentsschema show <id>— resolved field list, grouped inline / section, with link typesschema validate <path>— YAML parse, required id/name, identifier regex, parent existence, cycles, empty-enum check-o jsonflagAdapterConfiggains an optionalschema_id(parsed fromleanspec.adapter.yaml)leanspec create --schema <id>forwardsschema_idintoCreateRequestleanspec initscaffolds the.lean-spec/schemas/directoryTest plan
cargo test --workspace— 373 + 62 + ... all passing (no regressions)cargo clippy --workspace -- -D warningscleancargo fmt --checkcleanschema_registry: builtin load, extends flattening, field override, circular detection, unknown parent,leanspec:prefix protection, plus 5validate_schema_filecasesschema list,schema show leanspec:feature,schema show acme:sprint-story(inherited),schema validateon valid + missing-id + circular fixtures, JSON output, prefix-protection warningGenerated by Claude Code