Add profile inspection command

docs/cli.md

@@ -24,6 +24,7 @@ go run ./cmd/scriptorium render \
 - `scriptorium render`: prepare a prompt and write prepared-run output.
 - `scriptorium serve`: start the HTTP server.
 - `scriptorium inspect prompt`: inspect one prompt definition without model execution.
+- `scriptorium inspect profile`: inspect one effective profile without model execution.
 
 All commands accept `--config <path>` and reject positional arguments. An
 effective `prompt_dir` is required for every command. Supply it through the
@@ -151,6 +152,18 @@ and writes to stdout unless `--out` is supplied. It loads and normalizes the
 selected definition but does not resolve a profile, load a schema, render a
 template, reserve backend capacity, or call a model.
 
+## `scriptorium inspect profile`
+
+```text
+scriptorium inspect profile --profile ID
+    [--config PATH] [--profile-dir DIR] [--format text|json] [--out PATH]
+```
+
+`--profile` is required; built-in profiles need no prompt directory. Inspection
+resolves profile inheritance and backend defaults, but never reads a credential
+value, loads a prompt, reserves capacity, or calls a model. Unset provider
+controls are shown as zero values when Promptkit leaves them unspecified.
+
 ## Input And Variable Syntax
 
 `--input name=path` maps an input name to a local file; `--var name=value`

docs/internal/adapters.md

@@ -39,6 +39,10 @@ resolves its own defaults and definition-required inputs.
 data. It constructs the same configuration-aware engine but does not perform
 preparation or generation.
 
+`inspect profile` maps an explicit profile ID to `Engine.InspectProfile` and
+formats a safe application-owned effective profile view. It intentionally does
+not require prompt, schema, or artifact sources.
+
 `serve` constructs Scriptorium's restricted HTTP artifact reader, injects it
 with `promptkit.WithArtifactReader`, passes the engine through the HTTP
 adapter's consumer-owned `Runner` interface, and starts the server.

docs/roadmap/implementation.md

@@ -432,6 +432,8 @@ prepared-run presentation remains backward compatible.
 
 ## Stage 7: Add Stable Profile Inspection Output And CLI
 
+**Completion: Complete.**
+
 Complete the inspection command family with inherited, built-in, custom, and
 endpoint-only profile support.