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31991fe359
Project-level marker definitions fan out to every link (existing and new).
A definition is stored once on Project._marker_definitions; when applied to
a link the marker is named "global-{def_name}" — the "global" prefix was
pre-reserved in the schema, so inherited and per-link markers can never
collide, nor will their registry keys.
Key behavior:
- POST /projects/{pid}/marker-definitions → fan out to all existing links
- PUT /projects/{pid}/marker-definitions/{name} → sync all inherited copies
- DELETE → remove every inherited copy from every link
- New links auto-inherit all active defs (hook in UDPLink.create)
- Per-link DELETE/PUT of a "global-*" marker is rejected (409)
- Inherited markers are NOT persisted in the topology; they are re-created
from _marker_definitions on project load
- Compute side is untouched — the marker reaches uBridge via the existing
start_marker→update→NIO→ubridge pipeline
Files:
- controller/project.py — _marker_definitions + CRUD + fanout + topology load
- controller/link.py — Link.inherit_marker() + asdict() filter
- controller/udp_link.py — guards on stop/update + create() inheritance hook
- controller/topology.py — persist marker_definitions in project topology
- schemas/controller/links.py — MarkerDefinitionCreate schema
- api/routes/controller/projects.py — REST endpoints (marker-definitions)