Fase A identity on PCB HEAD: operator fence, keep BOM/SPOF/EMI.

Replace Faradworks Inc. TOS/privacy/contact/metadata with Michele Bigi.
Dual-read pinscope_* keys; write periscope_* only. AGPL LICENSE and
GitHub fork parent unchanged. validate.py not edited.

backend/services/projects.py

@@ -122,7 +122,7 @@ class ProjectMeta(BaseModel):
 
     # Periscope app version that generated the project's report.
     # Stamped on the first /start transition and preserved thereafter.
-    # Accept legacy pinscope_version from project.json written before the rebrand.
+    # Dual-read pinscope_version (PinScope fence); serialization uses periscope_version.
     periscope_version: str | None = Field(
         default=None,
         validation_alias=AliasChoices("periscope_version", "pinscope_version"),