Add opinionated MCP modes for workspace workflows

Introduce explicit repro-fix, inspect, cold-start, and review-eval modes across the MCP server, CLI, and host helpers, with canonical mode-to-tool mappings, narrowed schemas, and mode-specific tool descriptions on top of the existing workspace runtime.

Reposition the docs, host onramps, and use-case recipes so named modes are the primary user-facing startup story while the generic no-mode workspace-core path remains the escape hatch, and update the shared smoke runner to validate repro-fix and cold-start through mode-backed servers.

Validation: UV_OFFLINE=1 UV_CACHE_DIR=.uv-cache uv run pytest --no-cov tests/test_api.py tests/test_server.py tests/test_host_helpers.py tests/test_public_contract.py tests/test_cli.py tests/test_workspace_use_case_smokes.py; UV_OFFLINE=1 UV_CACHE_DIR=.uv-cache make check; UV_OFFLINE=1 UV_CACHE_DIR=.uv-cache make dist-check; real guest-backed make smoke-repro-fix-loop smoke-cold-start-validation outside the sandbox.

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 All notable user-visible changes to `pyro-mcp` are documented here.
 
+## 4.4.0
+
+- Added explicit named MCP/server modes for the main workspace workflows:
+  `repro-fix`, `inspect`, `cold-start`, and `review-eval`.
+- Kept the generic no-mode `workspace-core` path available as the escape hatch,
+  while making named modes the first user-facing story across help text, host
+  helpers, and the recipe docs.
+- Aligned the shared use-case smoke runner with those modes so the repro/fix
+  and cold-start flows now prove a mode-backed happy path instead of only the
+  generic profile path.
+
 ## 4.3.0
 
 - Added `pyro workspace summary`, `Pyro.summarize_workspace()`, and MCP