feat(5): overleveringspakke for eksterne — git archive HEAD + DEPLOY.md

Én zip en mottakende organisasjon deployer uten å klone repoet eller ha konto her.
Arkivet er git archive HEAD (tracked files only), som er SAMME tre den målte
docker-build-konteksten bruker — og grunnen til at STATE.md/*.local.md/.env ikke kan
komme inn: de er gitignorert, ikke filtrert bort av et filter vi må vedlikeholde.

DEPLOY.md svarer mottakerens tre første spørsmål: hvem gjør hva (plattform-operatør,
bestiller, fagperson), prosessen ende-til-ende, og hvorfor det ikke finnes et
chat-grensesnitt. Den navngir også deploy-kravet 4e målte men aldri skrev ned:
pakket model_map.json bærer REPLACE-WITH-*, så uten PORTFOLIO_MODEL_MAP starter
containeren, svarer på /readiness og feiler hver invocation.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SeW1LhH5TtXxKZPe9JkqL1

README.md

@@ -490,6 +490,21 @@ and `top_k` optional. Unknown fields are refused by name (400), never silently d
 credential from the environment at call time, so the same image runs hosted (managed identity)
 and locally (`az login`) without rewiring.
 
+### Handing it to someone else
+
+`scripts/make-handover-package.sh` builds one archive a receiving organisation can deploy without
+cloning this repository or having an account here:
+
+```bash
+scripts/make-handover-package.sh          # → dist/portfolio-optimiser-foundry-<version>.zip
+```
+
+The archive is `git archive HEAD` — tracked files only, which is the same tree the measured docker
+build context uses, and the reason local-only files cannot enter it. [`DEPLOY.md`](DEPLOY.md) rides
+along inside it and answers the receiver's first questions: what the three roles do, what the
+process is end to end, why there is no chat interface, and the two environment variables that decide
+whether the first deployment works. Gated by `tests/test_handover_package_loadbearing.py`.
+
 ## Docs
 
 - [Bestille en kjøring](docs/bestille-en-kjoring.md) *(norsk)* — for the domain expert who