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>

app/lib/data/live_inputs.dart

@@ -13,33 +13,33 @@ inputs:
   ratings: json
 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
   - 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
 outputs:
@@ -73,11 +73,11 @@ class NormLiveInput {
   final String cohortId;
 
   /// `{ duties: [ { population, frequency, tariff_eur_per_hour,
-  /// time_hours_per_case, source_norm, tier } ] }` for econ.skm_score.
+  /// time_hours_per_case, source_norm, tier } ] }` for econ.skm-score.
   final Map<String, Object?> duties;
 
   /// `{ schutz, markt, rechtssicherheit, eu_binnenmarkt, sicherheit,
-  /// umwelt, einnahmen }` (each 0..5) for law.benefit_score.
+  /// umwelt, einnahmen }` (each 0..5) for law.benefit-score.
   final Map<String, Object?> ratings;
 
   final Jurisdiction jurisdiction;

app/lib/data/models.dart

@@ -270,7 +270,7 @@ class Norm {
   final String? supersededNote;
 
   /// The actual paragraphs of the norm text, normalised by
-  /// `text.akoma_normalize` in live mode. In demo mode the
+  /// `text.akoma-normalize` in live mode. In demo mode the
   /// fixture quotes the public source verbatim under §5 UrhG
   /// (amtliche Werke).
   final List<NormParagraph> paragraphs;

app/lib/widgets/norm_text_card.dart

@@ -68,7 +68,7 @@ class NormTextCard extends StatelessWidget {
           if (paragraphs.isEmpty)
             Text(
               'Für diese Norm ist noch kein normalisierter Text '
-              'eingebunden. Wenn Ch∆In mit `text.akoma_normalize@^0` '
+              'eingebunden. Wenn Ch∆In mit `text.akoma-normalize@^0` '
               'gegen die Quell-URL läuft, erscheinen die Absätze hier.',
               style: t.bodyLarge?.copyWith(color: ReclaimColors.mute),
             )