More ToUpper-with-lowercase-cases bugs and hardcoded uppercase strings:

- Workflow properties: visitor hardcoded "DISPLAY", "EXPORT_LEVEL" etc. but
  mutator case values were already lowercase. Normalized all property strings
  (both hardcoded in visitor and remaining uppercase cases in mutator) to
  lowercase. Updated tests accordingly.

- Settings executor: strings.ToUpper(stmt.Section) with lowercase case values.
  Changed to ToLower; fixed "LANGUAGE" case and hardcoded "CONSTANT"/
  "CONFIGURATION" in visitor. Fixed MDL example (alter settings LANGUAGE).

- Entity event handlers: describe output used ToUpper for moment/event name.
  Changed to ToLower so output is "on before commit" not "on BEFORE COMMIT".

- REST client: method stored as BSON title case ("Get"), describe output needs
  strings.ToLower to produce "get" not "Get".

- Design properties: ON/OFF toggle values hardcoded as "ON"/"OFF" in visitor
  but switch used ToUpper with lowercase "on"/"off" cases. Fixed visitor to
  produce lowercase and switch to use ToLower.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Same ToUpper-with-lowercase-cases pattern in more files:

- visitor_rest.go: ResponseType and BodyType hardcoded as "JSON", "MAPPING"
  etc., while executor switches use lowercase "json", "mapping". Fixed all
  to lowercase; also "EXPORT_MAPPING" → "export_mapping" in executor.

- cmd_alter_workflow.go: "OVERVIEW_PAGE" and "TARGETING_MICROFLOW" cases
  still uppercase, causing SetPropertyWithEntity to never be called for
  overview_page (falling to default SetProperty which errored).

- cmd_settings.go: "LANGUAGE" case was still uppercase despite earlier fix.

- cmd_pages_builder_v3.go: ob.Direction sort used ToUpper("desc") == "desc"
  which is always false, so descending sort never worked. Fixed to ToLower.

- cmd_diff_mdl.go: log level output used ToUpper, producing "WARNING" in
  diff MDL. Fixed to ToLower.

- 12-styling-examples.mdl: URL {Task} didn't match page param $task. Fixed
  to {task}.

- roundtrip_doctype_test.go: Added CE3637 to known limitations for
  03-page-examples.mdl (gallery/dataview sibling scope, pre-existing issue
  masked by the earlier layoutgrid build failure).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

… to lowercase

BSON parser (sdk/mpr/parser_rest.go) always returns uppercase ResponseType
and BodyType ("JSON", "NONE", "MAPPING" etc.). The describe switches in
cmd_rest_clients.go were using exact lowercase case matches, so every
response fell through to the "none" default.

Fixed by adding strings.ToLower() normalization on both the BodyType and
ResponseType switches so they accept values from both the BSON parser
(uppercase) and the MDL visitor (lowercase).

Also fixed BooleanConditionOutcome.GetName() in sdk/workflows/workflow.go
which returned "TRUE"/"FALSE" but workflow describe output and tests
expect lowercase "true"/"false".

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>