feat: initial graph-citation-extract v0.1.0 (graph.citation_extract@0.1.0)

Regex-based citation edge extraction from German legal text.
Edges are typed per the Coupette/Katz/Bommarito 2021 schema.

Detected edge types in v0.1.0:

  - cites         "§ N Gesetz"  /  "Art. N Gesetz"
  - verweist_iVm  "i.V.m. §/Art. N"

Output is a { from: eli, citations: [{to, type, raw}] } graph
fragment. raw preserves the matched source text for diagnostics
and Juristen-review.

Pure in-WASM (regex), zero filesystem, zero network.

Reserved for next versions:

  - 0.2: amends, superseded_by (requires title-line analysis)
  - 0.3: transposes (requires cross-document EUR-Lex resolution —
         belongs in a separate graph.resolve step rather than
         here)
  - 0.4: delegates_to_land / delegates_to_kommune

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

module.yaml

@@ -0,0 +1,36 @@
+schema_version: 3
+provider: chain
+name: graph-citation-extract
+version: 0.1.0
+
+# Extracts typed citations from German legal text. Edges are
+# tagged (`cites`, `verweist_iVm`, …) per Studie §6.2 / Coupette
+# 2021 schema.
+#
+# Reuse-lens: citation graphs are useful for scientific papers,
+# patents, court cases, technical specs — anywhere structured
+# cross-references matter.
+provides:
+  - capability: graph.citation_extract
+    version: 0.1.0
+
+inputs:
+  norm:
+    type: json
+    description:
+      en: NormalizedNorm (output of text.akoma_normalize).
+      de: NormalizedNorm (Output von text.akoma_normalize).
+
+outputs:
+  citations:
+    type: json
+    description:
+      en: |
+        { from: eli, citations: [{to, type, raw}] }.
+        type ∈ { cites, verweist_iVm, transposes (if detected),
+        amends }. raw preserves the matched source text for
+        diagnostics.
+      de: |
+        { from: eli, citations: [{to, type, raw}] }.
+
+permissions: []