[M12] Add first-class lint CLI and shared structured results

[Teakowa]

Parent: #89
Depends on: #97

Goal

Expose lint as a first-class Wright workflow through the existing compiler/session/tooling stack instead of creating a separate analyzer path.

Scope

• Add wright lint for supported OPY and raw Workshop inputs.
• Reuse the shared driver/session compilation and semantic pipeline.
• Return structured lint findings with stable rule ID, severity, message, source identity/span, and evidence/confidence metadata where applicable.
• Integrate machine-readable output with the existing CLI JSON/result contracts.
• Expose the same lint query/results through Wright's embedding/tool/agent APIs rather than duplicating rule execution.
• Preserve deterministic configuration from [M12] Establish lint rule registry and configuration contract #97 across CLI and programmatic invocation.

Non-goals

• New rule semantics beyond what is required to prove the workflow.
• Third-party plugin loading.
• Content-pack/version work from [v0.2 workshop-rs] Define Workshop catalog, locale, extension, and version boundaries #96.
• A transport-specific API for Claude, Codex, Grok, OpenCode, MCP, or another harness.
• Automatic fixes.

Acceptance criteria

• wright lint runs on supported OPY and raw Workshop through the shared compiler/session pipeline.
• CLI text and JSON output expose stable rule IDs, configured severity, and original source identity/spans where available.
• Programmatic/tool consumers can request the same lint findings without invoking the CLI or rebuilding semantic state through a separate path.
• Rule enable/disable/severity configuration from [M12] Establish lint rule registry and configuration contract #97 behaves consistently across CLI and API use.
• Existing check/analyze behavior remains compatible unless an intentional contract change is documented.
• No plugin host or [v0.2 workshop-rs] Define Workshop catalog, locale, extension, and version boundaries #96 implementation is required.
• Current CI is green at acceptance.

Relationships

• Parent: [M12] Tooling-first lint and Workshop stability analysis platform #89.
• Depends on [M12] Establish lint rule registry and configuration contract #97 for the rule/config contract.
• Enables first-party stability rule delivery and M12 acceptance.