Programm architecture simplified so that the EDA can now run individually without generation of .gds file

INTRANET_DEPLOYMENT.md

@@ -6,6 +6,13 @@ Organization : OptiHK Limited
 -->
 # mxPIC EDA Intranet Deployment
 
+## Build-Time Router Stack
+
+The Flask server can launch for login, dashboard, canvas editing, YAML
+generation, and PDK browsing without importing `mxpic_router` or `mxpic_forge`.
+Build actions require the matched `mxpic_router` and `mxpic_forge` checkouts;
+SVG preview generation also requires `gdstk`.
+
 ## Start on the office LAN
 
 1. On the host computer, open PowerShell in this repository.
@@ -64,6 +71,13 @@ MXPIC_PORT=3000
 MXPIC_DEBUG=0
 MXPIC_SECRET_KEY=<long random string>
 MXPIC_COOKIE_SECURE=0
+MXPIC_PDK_PUBLIC_ROOT=<path-to-public-foundries>
+MXPIC_PDK_ATLAS_ROOT=<path-to-atlas-foundries>
 ```
 
 Set `MXPIC_COOKIE_SECURE=1` only when serving through HTTPS.
+
+PDK component metadata, GDS assets, and `technology.yml` manifests are all read
+from these role-scoped roots. If the variables are not set, the backend defaults
+to `../opt_pdk_public/foundries` for normal users/developers and
+`../opt_pdk_atlas/foundries` for managers.