fix(store): dash capability IDs + .chain bundles (chain catalog conformance)

chain's catalog charset (naming.rs check_segment, capability-namespaces.yaml)
allows only [a-z0-9-] per dot-segment — underscores are rejected by
`chain validate`. Repack all 8 modules with the dash capability form
(econ.skm-score, law.benefit-score, …) and align the store index, flows,
app strings and docs to match. Bundles now use the .chain extension
(content-addressed; legacy .fai would still install).

- store/store.yaml: name: dash, wasm_url .chain, refreshed sha256
- store/SHA256.txt: 8 new .chain hashes
- flows + app/lib + RUN.md + MACHBARKEITSSTUDIE.md: capability refs _ -> -
- left untouched: text_akoma_normalize.wasm artifact, DB field skm_score,
  backlog module law.skm_score

Signed-off-by: flemming-it <sf@flemming.it>

flows/durchstich-full.yaml

@@ -7,7 +7,7 @@
 # + frust + cohort, also die Form, die HubRepository.list() in der
 # Recl∆Im-App in Evaluation-Objekte übersetzt.
 #
-# NICHT enthalten: econ.skm_score und law.benefit_score. Beide
+# NICHT enthalten: econ.skm-score und law.benefit-score. Beide
 # Module lesen ihren Tupel-/Ratings-Input über `require_json`,
 # d.h. sie erwarten ein Payload::Json. In einem Flow lässt sich
 # ein Json-Wert aber nur aus einem vorhergehenden Step-Output
@@ -35,28 +35,28 @@ inputs:
 
 steps:
   - id: normalize
-    use: text.akoma_normalize@^0
+    use: text.akoma-normalize@^0
     with:
       content: $inputs.content
       mime: "application/xml"
 
   - id: deontic
-    use: text.deontic_extract@^0
+    use: text.deontic-extract@^0
     with:
       norm: $normalize.norm
 
   - id: citations
-    use: graph.citation_extract@^0
+    use: graph.citation-extract@^0
     with:
       norm: $normalize.norm
 
   - id: cohort
-    use: stats.cohort_size@^0
+    use: stats.cohort-size@^0
     with:
       cohort_id: $inputs.cohort_id
 
   - id: frust
-    use: text.readability_score@^0
+    use: text.readability-score@^0
     with:
       norm: $normalize.norm
       graph: $citations.citations
@@ -65,11 +65,11 @@ steps:
   # nach dem Fix gilt — `inputs:` oben um `duties: json` /
   # `ratings: json` ergänzen und mit --input duties=… speisen:
   # - id: skm
-  #     use: econ.skm_score@^0
+  #     use: econ.skm-score@^0
   #     with:
   #       duties: $inputs.duties
   # - id: benefit
-  #     use: law.benefit_score@^0
+  #     use: law.benefit-score@^0
   #     with:
   #       ratings: $inputs.ratings