Unveil environments setup-local: make the command visible

.nextchanges/cli/environments-setup-local.md

@@ -0,0 +1 @@
+Added the `databricks environments setup-local` command, which provisions (or updates) a local Python environment matched to a Databricks compute target. It resolves the target to an environment key, fetches the pinned Python version, databricks-connect version, and dependency constraints published for that key, then provisions a matched `.venv` with uv.

acceptance/localenv/group-help/output.txt

@@ -0,0 +1,3 @@
+
+>>> [CLI] environments --help
+  setup-local                               Set up a local Python environment that matches your Databricks compute

acceptance/localenv/group-help/script

@@ -0,0 +1,5 @@
+# Assert setup-local is now listed under the generated environments group (the
+# visibility this PR unveils). Grep a single line rather than snapshotting the
+# whole group help, which also lists generated API subcommands that churn on
+# SDK regen.
+trace $CLI environments --help | grep setup-local

acceptance/localenv/group-help/test.toml

@@ -0,0 +1 @@
+EnvMatrix.DATABRICKS_BUNDLE_ENGINE = ["direct"]

cmd/environments/sync.go

@@ -31,10 +31,6 @@ Use this when you want to develop or debug a Databricks project locally: it inst
 
   # See what would change without writing anything
   databricks environments setup-local --serverless-version 5 --dry-run`,
-		// Hidden until the environment constraints repository is publicly
-		// available: the command is runnable for dogfooding but stays out of
-		// help and completion until it is unveiled.
-		Hidden: true,
 	}
 	// The target is selected via flags; reject stray positional args rather than
 	// silently ignoring them.