feat: publish FreeRTOS C FC03 card

doc/assets/a5-flow-a.puml

@@ -0,0 +1,36 @@
+@startuml
+!include card-uml-style.iuml
+scale 900 width
+hide footbox
+skinparam ParticipantPadding 16
+
+participant "main" as Main
+participant "Scheduler" as Scheduler
+participant "tick hook" as Tick
+participant "high probe" as High
+participant "peerA" as A
+participant "peerB" as B
+participant "verifier" as Verify
+
+Main -> Main : <b>01</b> config + contexts committed
+||26||
+Main -> High : <b>02</b> create Ready at priority 0
+||26||
+Main -> A : <b>03</b> priorities high=0, peers=2/2, verifier=1
+Main -> B
+Main -> Verify
+||26||
+Main -> Scheduler : <b>04</b> vTaskStartScheduler()
+activate Scheduler
+Scheduler -> A : <b>05</b> first peer runs
+deactivate Scheduler
+||26||
+Tick -> Tick : <b>06</b> first machine-timer tick recorded
+||26||
+A -> B : time slice
+B -> A : <b>07</b> committed subsequence A → B → A
+
+note over Main,Verify
+  Continue on part 2/2 with identical participant order.
+end note
+@enduml