Checkpoint source 7 workflows and in-progress diagram authoring redesign

Preserve current core, source, REST, desktop, recovery, documentation and validation work, including AGENTS.md and the development summary. This is a work-in-progress checkpoint: the new compact palette has outstanding compilation errors and native acceptance; earlier passing gates retain their documented scope.

examples/release1/README.md

@@ -1,6 +1,6 @@
 # Restore safe water pressure
 
-This source-6 project follows one engineering question: after a pressure alarm, can the control room restore service remotely, or must a technician repair a valve? It connects the operational need to an explicitly chosen coordination-service boundary. Allow about 25 minutes for the walkthrough.
+This source-7 project follows one engineering question: after a pressure alarm, can the control room restore service remotely, or must a technician repair a valve? It connects the operational need to an explicitly chosen coordination-service boundary. Allow about 25 minutes for the walkthrough.
 
 Copy the whole `examples/release1` folder to your working location, then open the copied `project.arcadia` in Arcadia Studio. Keep the folder together: the entry includes 29 modules, and the evidence link is relative to it. If you instead use Save As to a new folder, it copies model source files only: also copy `evidence/` beside the new entry and keep this README available. Save As does not copy external artifact targets. Existing older examples remain useful migration exercises.
 
@@ -61,7 +61,7 @@ The integration oracle executes this exact semantic review and source update. It
 
 | File or folder | Purpose |
 |---|---|
-| `project.arcadia` | Openable source-6 entry with all module includes |
+| `project.arcadia` | Openable source-7 entry with all module includes |
 | `oa/`, `sa/` | Participants, work, data, capabilities and reusable behavior |
 | `views/` | Five saved views; filters and placements are presentation state |
 | `traceability.arcadia` | OA↔SA correspondence and review history |

examples/release1/model.json

@@ -3103,7 +3103,7 @@
       "name": "Capability involvement: Assess an alarm"
     }
   },
-  "schema_version": 6,
+  "schema_version": 7,
   "traces": {
     "0754be23-e4b8-53bc-b03c-89c2dbd80361": {
       "alias": "trace_oa_waiting",

examples/release1/model.rs

@@ -106,6 +106,7 @@ fn message(
     value: &str,
 ) -> OccurrenceBody {
     OccurrenceBody::Exchange {
+        operation: None,
         exchange: Some(exchange),
         sender: Some(sender),
         receiver: Some(receiver),
@@ -425,6 +426,7 @@ pub fn build() -> Lesson {
         "oa_request_step",
         "Request the field repair",
         OccurrenceBody::Exchange {
+            operation: None,
             exchange: Some(request_exchange),
             sender: None,
             receiver: None,
@@ -449,6 +451,7 @@ pub fn build() -> Lesson {
         "oa_report_step",
         "Report the measured result",
         OccurrenceBody::Exchange {
+            operation: None,
             exchange: Some(report_exchange),
             sender: None,
             receiver: None,

examples/release1/project.arcadia

@@ -1,4 +1,4 @@
-arcadia 6;
+arcadia 7;
 project pressure_restoration "Restore safe water pressure — release 1 walkthrough" id "2786d72f-5763-5f33-a57f-2773a4ca1a6c" {
     description "A controller either resets a valve remotely or requests field repair. Compare the operational need with the explicitly chosen coordination-service boundary. Start with README.md beside project.arcadia. Units and guards are descriptive; this model does not simulate a real water network.";
     include "oa/activities/activity_oa_restore_work.arcadia";

examples/release1/transition-before.json

@@ -1193,6 +1193,6 @@
       "name": "Capability involvement: Assess an alarm"
     }
   },
-  "schema_version": 6,
+  "schema_version": 7,
   "traces": {}
 }