refactor(i18n): rename docs/plaene/ -> docs/plans/

Last German folder name in demo-epb. Pairs cleanly with docs/plans-md/
(markdown source) following the project convention. All references
in landing page generator, CI workflows, and cross-doc links updated.

.gitea/workflows/release.yml

@@ -74,9 +74,9 @@ jobs:
           cp -r src/stubs                   "$BUNDLE/src/"             2>/dev/null || true
 
           # All Word documents (plans, safety, manuals, audit artefacts)
-          mkdir -p "$BUNDLE/docs/plaene" "$BUNDLE/docs/safety" "$BUNDLE/docs/manuals" \
+          mkdir -p "$BUNDLE/docs/plans" "$BUNDLE/docs/safety" "$BUNDLE/docs/manuals" \
                    "$BUNDLE/docs/reviews" "$BUNDLE/docs/non-conformities" "$BUNDLE/misra/records"
-          cp -r docs/plaene/*           "$BUNDLE/docs/plaene/"           2>/dev/null || true
+          cp -r docs/plans/*           "$BUNDLE/docs/plans/"           2>/dev/null || true
           cp -r docs/safety/*           "$BUNDLE/docs/safety/"           2>/dev/null || true
           cp -r docs/manuals/*          "$BUNDLE/docs/manuals/"          2>/dev/null || true
           cp -r docs/reviews/*          "$BUNDLE/docs/reviews/"          2>/dev/null || true
@@ -119,7 +119,7 @@ jobs:
           - \`reports/test-report.html\` — Test summary with requirement mapping
 
           **Documents (Word, curated):**
-          - \`docs/plaene/\` — PID, PM-/QA-/SWE-/Test-Plan
+          - \`docs/plans/\` — PID, PM-/QA-/SWE-/Test-Plan
           - \`docs/safety/\` — HARA, Safety Case, FMEDA, MISRA-Compliance, Verification-Report, Tool-Qualification
           - \`docs/manuals/\` — User-Manual + Service-Manual
           - \`docs/reviews/\` — Review-Protokoll(e)

.gitea/workflows/validate.yml

@@ -164,7 +164,7 @@ jobs:
           fi
           mkdir -p "$DEPLOY"/{docs,coverage,traceability,diagrams,api-doc,reports/cppcheck,src,misra/records}
           cp build/index.html "$DEPLOY/index.html"
-          cp -r docs/plaene docs/safety docs/manuals docs/reviews docs/non-conformities "$DEPLOY/docs/"
+          cp -r docs/plans docs/safety docs/manuals docs/reviews docs/non-conformities "$DEPLOY/docs/"
           cp -r build/coverage-html/. "$DEPLOY/coverage/" 2>/dev/null || true
           cp -r docs/traceability/. "$DEPLOY/traceability/"
           cp -r docs/diagrams/. "$DEPLOY/diagrams/"

README.md

@@ -63,7 +63,7 @@ python3 tools/render_plantuml.py
 ## Guided tour (~30 min)
 
 ### 1. Project planning (Word)
-`docs/plaene/`:
+`docs/plans/`:
 - **Project-Manual.docx** — Navigation guide, reading order, roles
 - **PID.docx** — What is built and why
 - **SWE-Plan.docx** — Language, standards, branching, reviews, coverage targets

docs/plans-md/CM-Plan.md

@@ -33,7 +33,7 @@ The following artefacts are under configuration control:
 | Requirements            | `reqs/{sys,swe}/*.md`                   | Git + Doorstop item hash     |
 | Architecture            | `arch/{sys,swe}/*.md`                   | Git + Doorstop item hash     |
 | Safety Goals            | `safety/sg/*.md`                        | Git                          |
-| Plans (Word)            | `docs/plaene/*.docx`                    | Git + document version block |
+| Plans (Word)            | `docs/plans/*.docx`                    | Git + document version block |
 | Safety docs (Word)      | `docs/safety/*.docx`                    | Git                          |
 | Manuals (Word)          | `docs/manuals/*.docx`                   | Git                          |
 | Reviews + NCs           | `docs/reviews/`, `docs/non-conformities/` | Git                       |

docs/plans-md/Project-Manual.md

@@ -31,7 +31,7 @@ This Project Manual is the entry point to the demo-epb project. It answers:
 
 A complete demo of the **slohmaier Dev Process** using an EPB ECU software. The goal is **not** the productive software, but evidence of ASPICE 4.0 / ISO 26262-compliant development.
 
-Detail: `docs/plaene/PID.docx`.
+Detail: `docs/plans/PID.docx`.
 
 ## 3. Reading order for new project members
 
@@ -52,7 +52,7 @@ Detail: `docs/plaene/PID.docx`.
 
 ```
 demo-epb/
-├── docs/plaene/         ← PID, PM Plan, QA Plan, SWE Plan, Test Plan, CM Plan, RM Plan
+├── docs/plans/         ← PID, PM Plan, QA Plan, SWE Plan, Test Plan, CM Plan, RM Plan
 ├── docs/safety/         ← HARA, Safety Case, FMEDA, MISRA Compliance, Verification Report, Tool Qualification
 ├── docs/manuals/        ← User Manual, Service Manual
 ├── docs/reviews/        ← Review minutes

tools/generate_landing_page.py

@@ -125,7 +125,7 @@ def main() -> int:
     n_stubs = sum(1 for f in (REPO / "src" / "stubs").glob("*.h"))
 
     # Word docs
-    plans   = collect_docs("docs/plaene")
+    plans   = collect_docs("docs/plans")
     safety  = collect_docs("docs/safety")
     manuals = collect_docs("docs/manuals")
     reviews = collect_docs("docs/reviews")