Add workspace naming and discovery

Make concurrent workspaces easier to rediscover and resume without relying on opaque IDs alone.

Add optional workspace names, key/value labels, workspace list, and workspace update across the CLI, Python SDK, and MCP surface, and persist last_activity_at so list ordering reflects real mutating activity.

Update the stable contract, install/first-run docs, roadmap, and Python workspace example to teach the new discovery flow, and validate it with focused manager/CLI/API/server coverage plus uv lock, make check, make dist-check, and a real multi-workspace smoke for create, list, update, exec, reorder, and delete.

CHANGELOG.md

@@ -2,6 +2,18 @@
 
 All notable user-visible changes to `pyro-mcp` are documented here.
 
+## 3.3.0
+
+- Added first-class workspace naming and discovery across the CLI, Python SDK, and MCP server
+  with `pyro workspace create --name/--label`, `pyro workspace list`, `pyro workspace update`,
+  `Pyro.list_workspaces()`, `Pyro.update_workspace()`, and the matching `workspace_list` /
+  `workspace_update` MCP tools.
+- Added persisted `name`, key/value `labels`, and `last_activity_at` metadata to workspace create,
+  status, reset, and update payloads, and surfaced compact workspace summaries from
+  `workspace list`.
+- Tracked `last_activity_at` on real workspace mutations so humans and chat-driven agents can
+  resume the most recently used workspace without managing opaque IDs out of band.
+
 ## 3.2.0
 
 - Added model-native live workspace file operations across the CLI, Python SDK, and MCP server