Prepare the core release candidate

docs/releases/v0.4.0.md

@@ -0,0 +1,32 @@
+# CommandKit v0.4.0
+
+CommandKit v0.4.0 adds shared structured reporting and reusable CLI input
+facilities. Applications and integrations can submit one report value for
+automatic or explicit text, YAML, and JSON output. Core selects the format,
+renders optional standard text templates, and records presentation failures
+through the existing invocation lifecycle. The writer API exposes the same
+rendering behavior outside an invocation.
+
+Report values use JSON serialization conventions for structured output. The
+safe YAML conversion helper accepts upstream inspection documents without
+reconstructing configuration or treating ordinary strings as YAML. Public CLI
+JSON parsing and ordered flag occurrences support structured inputs and
+interleaved bindings. Applications can reuse and rename flag bindings while
+preserving their typed parsing and presence behavior.
+
+This pre-1.0 minor release reserves the long flag `--format` for core and
+changes standard version output to use shared reporting. Applications that
+declare a local `--format` must remove or rename it; an application alias may
+target the core flag. Integration report framing and format availability have
+changed with the shared API; select compatible integration releases as they
+become available. See the [CLI reference](../cli.md#reporting) and
+[consumer guide](../consumers/guide.md#invocation-reporting) for current
+contracts and examples.
+
+Core continues to declare a Go 1.26.0 consumer minimum. The maintainer release
+toolchain is Go 1.27.0, and core has no ConfigKit or PromptKit integration
+dependency.
+
+[COPYRIGHT](https://forge.maximumdirect.net/base-layer/commandkit/src/tag/v0.4.0/COPYRIGHT) |
+[LICENSE](https://forge.maximumdirect.net/base-layer/commandkit/src/tag/v0.4.0/LICENSE) |
+[ATTRIBUTION](https://forge.maximumdirect.net/base-layer/commandkit/src/tag/v0.4.0/docs/oss/attribution.md)