chore: remove deprecated flow_boundary and update docs to match new architecture

_bmad-output/implementation-artifacts/sprint-status.yaml

@@ -141,7 +141,7 @@ development_status:
   epic-9-retrospective: optional
 
   # Epic 10: Enhanced Boundary Conditions
-  # Refactoring of FlowSource/FlowSink for typed fluid support
+  # Refactoring of RefrigerantSource/BrineSource for typed fluid support
   # See: _bmad-output/planning-artifacts/epic-10-enhanced-boundary-conditions.md
   epic-10: in-progress
   10-1-new-physical-types: done
@@ -166,8 +166,8 @@ development_status:
   11-10-movingboundaryhx-cache-optimization: done
   11-11-vendorbackend-trait: done
   11-12-copeland-parser: done
-  11-13-swep-parser: review
-  11-14-danfoss-parser: ready-for-dev
+  11-13-swep-parser: done
+  11-14-danfoss-parser: done
   11-15-bitzer-parser: ready-for-dev
   epic-11-retrospective: optional
 
@@ -175,10 +175,10 @@ development_status:
   # Support for ScrewEconomizerCompressor, MCHXCondenserCoil, FloodedEvaporator
   # with proper internal state variables, CoolProp backend, and controls
   epic-12: in-progress
-  12-1-cli-internal-state-variables: in-progress
-  12-2-cli-coolprop-backend: ready-for-dev
-  12-3-cli-screw-compressor-config: ready-for-dev
-  12-4-cli-mchx-condenser-config: ready-for-dev
+  12-1-cli-internal-state-variables: done
+  12-2-cli-coolprop-backend: done
+  12-3-cli-screw-compressor-config: in-progress
+  12-4-cli-mchx-condenser-config: in-progress
   12-5-cli-flooded-evaporator-brine: ready-for-dev
   12-6-cli-control-constraints: ready-for-dev
   12-7-cli-output-json-metrics: ready-for-dev