fix(test): pass explicit workspace name to init to avoid Pydantic validation error

The E2E Suite Setup creates SUITE_HOME with dots in the basename
(e.g., E2E.M4_Acceptance). When init derives the project name from
the directory basename, the dot triggers a Pydantic validation error.
Pass an explicit name argument to avoid this.

ISSUES CLOSED: #744

robot/e2e/m4_acceptance.robot

@@ -29,7 +29,7 @@ M4 Corrections Subplans And Checkpoints
     # Use --path to place the workspace inside SUITE_HOME so that the
     # E2E Suite Teardown cleans it up and runs are fully isolated.
     ${r_init}=    Run CleverAgents Command
-    ...    init    --yes    --force    --path    ${SUITE_HOME}
+    ...    init    --yes    --force    --path    ${SUITE_HOME}    m4-e2e-workspace
     Should Not Contain    ${r_init.stdout}${r_init.stderr}    Traceback
     Should Not Contain    ${r_init.stdout}${r_init.stderr}    INTERNAL
     Log    Init output: ${r_init.stdout}