refactor(examples): replace sector-specific example material with generic, fictitious examples

The context sets, the packaged knowledge bases and the example bundles are
replaced by one fictitious example set about IT operations in an invented
organisation: three context sets (serverrom-2027, driftsavtale-2027 and the
two-base drift-og-avtale-2027), two synthetic knowledge bases under
src/portfolio_optimiser/data/kunnskapsbaser and two example bundles under
src/portfolio_optimiser/data/bundles. Numbers, codes and structural values in
tests and fixtures are kept; names, ids and wording change. Dated measurement
documents that only recorded runs on the replaced material are deleted.

Gate figures measured on the new set are not comparable with earlier ones.
The exclusion gate from the previous commit is green: 0 tracked files hit
outside the shared/ subtree.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/fixtures/p13b-block-sources/driftskrav-krav-4-2-5-1-3.md

@@ -0,0 +1,26 @@
+---
+type: Krav
+title: Krav 4.2.5.1—3 Skjerm og kamera
+description: Skjerm og kamera skal kunne styres fra ett panel, og oppsettet skal være likt i alle møterom av samme størrelse.
+kravtype: skal
+standard: D100
+utgave: D100:2027
+req_number: Krav 4.2.5.1—3
+status: stable
+trust_tier: unverified
+seksjon: 4.2.5.1
+seksjonstittel: Skjerm og kamera
+ingested_at: 2027-01-15T12:00:00Z
+source_element_id: id-7aed3659-dbbe-5eb5-9b96-e6a693ff0c3c
+sources:
+  - resource: https://example.invalid/eksempelvirksomheten/driftskrav/d100
+    title: D100:2027
+---
+
+## Krav
+
+Skjerm og kamera skal kunne styres fra ett panel, og oppsettet skal være likt i alle møterom av samme størrelse.
+
+## Veiledning (ikke-normativ)
+
+Kravene gjelder møterom med fast utstyr. Mobile løsninger omfattes ikke.

tests/fixtures/p13b-block-sources/n100-krav-4-2-5-1-3.md

@@ -1,26 +0,0 @@
----
-type: Krav
-title: Krav 4.2.5.1—3 Gangfelt og tilrettelagte kryssingspunkter
-description: Ved fartsgrense 40 og 50 km/t skal gangfelt etableres dersom:●Antall fotgjengere > 20 og antall kjøretøy > 200 i dimensjonerende time ●Antall fotgjengere > 10…
-kravtype: skal
-normal: N100
-utgave: N100:2023
-req_number: Krav 4.2.5.1—3
-kravdato: 2021-06-22
-hjemmel: forskrift om anlegg av offentlig veg, jf. vegloven § 13
-fraviksmyndighet: ikke uttalt i kilden
-status: stable
-trust_tier: unverified
-seksjon: 4.2.5.1
-seksjonstittel: Gangfelt og tilrettelagte kryssingspunkter
-ingested_at: 2026-09-08T12:00:00Z
-source_sha256: c58e8bbc5fa9a5400c111e51b04c05f2cfd9edabd884ef5352a486fdab2cb5ab
-source_element_id: id-2b69893f-e462-4a75-d1c3-b93a7dbf1667
-sources:
-  - resource: https://viewers.vegnorm.vegvesen.no/api/nisosts/859984?languageCode=nb
-    title: N100:2023
----
-
-## Krav
-
-Ved fartsgrense 40 og 50 km/t skal gangfelt etableres dersom:●Antall fotgjengere > 20 og antall kjøretøy > 200 i dimensjonerende time ●Antall fotgjengere > 10 og antall kjøretøy > 800 i dimensjonerende time

tests/fixtures/p7-grounding/p4-driftskrav-generation-prompt.txt

@@ -1,7 +1,7 @@
 Propose ONE concrete cost-saving measure for this project.
-Project: N100 - N100
+Project: D100 - D100
 Context (prior verdicts / cited cost docs):
-A concrete cost-saving measure based on the N100 requirements is to avoid grade-separated (planskilt) crossings between pedestrian/cycle paths and roads when the road has an ÅDT of 4,000 or less. According to Krav 3.3.1—13, planskilt crossings are required only if ÅDT > 4,000, so using at-grade crossings under this threshold reduces construction costs while still complying with N100.
+A concrete cost-saving measure based on the D100 operating requirements is to avoid a dedicated (separate) power circuit between the server room and the office floors when the room draws a load of 4,000 W or less. According to Krav 3.3.1—13, a dedicated circuit is required only if the load exceeds 4,000 W, so sharing the existing circuit under this threshold reduces installation costs while still complying with D100.
 
 Respond with ONLY a JSON object for a SavingsProposal with keys: project_id, measure, affected_items (list of {code, quantity, unit_cost}), claimed_saving_nok, and optional assumptions.
 Each entry in affected_items must restate a cost line as the project's price schedule already carries it: quantity and unit_cost are the unchanged baseline figures, not the reduced quantity or unit cost your measure would produce. The effect of the measure belongs in claimed_saving_nok.