fix broken links and add link linting

.github/workflows/link_check.yml

@@ -0,0 +1,28 @@
+name: Check markdown links
+run-name: Checking markdown links
+on:
+    push:
+        branches:
+            - "main"
+    pull_request:
+    workflow_dispatch:
+
+jobs:
+    link-check:
+        runs-on: ubuntu-latest
+        steps:
+            - name: check out repository code
+              uses: actions/checkout@v4
+
+            - name: check relative links in markdown files
+              uses: lycheeverse/lychee-action@v2
+              with:
+                  # --offline: only verify links that resolve to files in this repo (skip external http(s) links,
+                  # which are numerous, out of our control, and would make CI flaky for a low-maintenance catalog).
+                  args: >-
+                      --offline
+                      --no-progress
+                      --include-fragments
+                      --root-dir ${{ github.workspace }}
+                      '**/*.md'
+                  fail: true

BB-CEST/Cloud-Infrastructure-and-Deployment/Edge-to-Cloud-Integration/BB_fleet_management.md

@@ -46,7 +46,7 @@ Fleet Management provides a proven blueprint for orchestrating software-defined
 
 ## Dependencies
 - **Requires:** SDV runtime (AUTOSAR Adaptive or Linux), Kubernetes/container orchestration, data storage (cloud backend)
-- **Composes with:** [BB_service_to_signal](../../../Communication-and-Networking/Edge-to-Cloud-Connectivity/BB_service_to_signal.md), cloud infrastructure (Azure, AWS), app marketplace systems
+- **Composes with:** [BB_service_to_signal](../../Communication-and-Networking/Edge-to-Cloud-Connectivity/BB_service_to_signal.md), cloud infrastructure (Azure, AWS), app marketplace systems
 - **Integrates with:** Telematics platforms, OTA update systems, analytics and ML pipelines
 
 ## State

BB-CEST/Communication-and-Networking/Edge-to-Cloud-Connectivity/BB_service_to_signal.md

@@ -43,7 +43,7 @@ Service-to-Signal bridges legacy signal-centric vehicle architectures with moder
 
 ## Dependencies
 - **Requires:** uProtocol framework, vehicle signal sources (CAN/LIN/Ethernet), SDV runtime
-- **Composes with:** [BB_fleet_management](../../../Cloud-Infrastructure-and-Deployment/Edge-to-Cloud-Integration/BB_fleet_management.md), cloud connectivity layers, analytics and monitoring
+- **Composes with:** [BB_fleet_management](../../Cloud-Infrastructure-and-Deployment/Edge-to-Cloud-Integration/BB_fleet_management.md), cloud connectivity layers, analytics and monitoring
 - **Integrates with:** Signal databases (DBC, ODX), OBD-II interfaces, telematics gateways, cloud backends
 
 ## State

BB-CSC/README.md

@@ -1,4 +1,4 @@
 <!-- TODO: finish landing page -->
 # BB-CSC
 
-![BB-CSC](/figures/BB-CSC.png)
+![BB-CSC](/other/figures/BB-CSC.png)

BB-SC/2b-MWLayer/Communication/BB_agnocast.md

@@ -43,7 +43,7 @@ Agnocast addresses the latency and efficiency requirements of autonomous driving
 
 ## Dependencies
 - **Requires:** ROS2 ecosystem, C++ compiler (C++17+), Linux kernel with IPC support
-- **Composes with:** [BB_openadkit](../../../Cloud-Infrastructure-and-Deployment/Containerization/BB_openadkit.md), perception and planning modules, real-time middleware stacks
+- **Composes with:** [BB_openadkit](../../../BB-CEST/Cloud-Infrastructure-and-Deployment/Containerization/BB_openadkit.md), perception and planning modules, real-time middleware stacks
 - **Integrates with:** Autoware modules, sensor drivers, hardware abstraction layers, vehicle control systems
 
 ## State

BB-SC/2b-MWLayer/Diagnostics/BB_dlt_daemon.md

@@ -36,7 +36,7 @@ DLT is the industry-standard diagnostic framework in automotive, forming the fou
 
 ## Dependencies
 - **Requires:** OS-level logging infrastructure, IPC mechanisms (D-Bus, netlink, or native APIs)
-- **Composes with:** [BB_dlt_viewer](../../Development-Testing-and-Simulation-Environments/Debugging-and-Monitoring/BB_dlt_viewer.md), application logging libraries, cloud telemetry systems
+- **Composes with:** [BB_dlt_viewer](../../../BB-CEST/Development-Testing-and-Simulation-Environments/Debugging-and-Monitoring/BB_dlt_viewer.md), application logging libraries, cloud telemetry systems
 - **Conflicts with:** Custom in-vehicle logging frameworks (integration required)
 
 ## State

BB-SC/README.md

@@ -1,4 +1,4 @@
 <!-- TODO: finish landing page -->
 # BB-SC
 
-![BB-SC](/figures/BB-SC.png)
+![BB-SC](/other/figures/BB-SC.png)

README.md

@@ -191,7 +191,7 @@ Ideas and concepts for BBs get collected in the [WorkInProgress folder](/WorkInP
         - Deployment-Management
             - [BB_Eclipse_Ankaios](/BB-SC/2b-MWLayer/Deployment-Management/BB_Eclipse_Ankaios.md)
             - [BB_Eclipse_SymphonyAgents](/BB-SC/2b-MWLayer/Deployment-Management/BB_Eclipse_SymphonyAgents.md)
-            - [BB_CARISMA](/BB-SC/2b-MWLayer/Deployment-Management/BB_CARISMA)
+            - [BB_CARISMA](/BB-SC/2b-MWLayer/Deployment-Management/BB_CARISMA.md)
         - Diagnostics
             - [BB_Eclipse_OpenSOVD](/BB-SC/2b-MWLayer/Diagnostics/BB_Eclipse_OpenSOVD.md)
             - [BB_Eclipse_S-CORE_logging](/BB-SC/2b-MWLayer/Diagnostics/BB_Eclipse_S-CORE_logging.md)
@@ -227,7 +227,7 @@ Ideas and concepts for BBs get collected in the [WorkInProgress folder](/WorkInP
             - [BB_OpenHarmony](/BB-SC/2a-OSLayer/Stacks/BB_OpenHarmony.md)
             - [BB_HaloOS](/BB-SC/2a-OSLayer/Stacks/BB_HaloOS.md)
         - Virtualization
-            - [BB_ L4Re](/BB-SC/2a-OSLayer/Virtualization/BB_%20L4Re.md)
+            - [BB_L4Re](/BB-SC/2a-OSLayer/Virtualization/BB_L4Re.md)
         - Time
 - [BB-CMU](/BB-CMU/README.md)
 - [BB-SC-TC](/BB-SC-TC/README.md)

WorkInProgress/BB-CSC/README.md

@@ -1,4 +1,4 @@
 <!-- TODO: finish landing page -->
 # BB-CSC
 
-![BB-CSC](/figures/BB-CSC.png)
+![BB-CSC](/other/figures/BB-CSC.png)

WorkInProgress/BB-SC/2b-MWLayer/Communication/BB_SecOS.md

@@ -38,7 +38,7 @@ TDB
 <!-- Link to required BB(s) 
 E.g. BB-SC StateManagement 
 BB is a composition of other BBs -->
-[BB_Secure_Onboard_Communication](/BB-SC/MWLayer/Security/BB_Secure_Onboard_Communication.md)
+[BB_Secure_Onboard_Communication](/WorkInProgress/BB-SC/2b-MWLayer/Security/BB_Secure_Onboard_Communication.md)
 
 ## What is needed to Design and Implement
 <!-- e.g. we expect to have a certain HW capability and or SW environment or Tool support, or a documentation, or an extra audit, or Test, or Compiler, or Prog. Language, … -->

WorkInProgress/BB-SC/2b-MWLayer/Security/BB_Secure_Onboard_Communication.md

@@ -39,7 +39,7 @@ AUTOSAR SecOC
 <!-- Link to required BB(s) 
 E.g. BB-SC StateManagement 
 BB is a composition of other BBs -->
-[BB_SecOS](/BB-SC/MWLayer/Communication/BB_SecOS.md)
+[BB_SecOS](/WorkInProgress/BB-SC/2b-MWLayer/Communication/BB_SecOS.md)
 
 ## What is needed to Design and Implement
 <!-- e.g. we expect to have a certain HW capability and or SW environment or Tool support, or a documentation, or an extra audit, or Test, or Compiler, or Prog. Language, … -->

WorkInProgress/BB-SC/README.md

@@ -1,4 +1,4 @@
 <!-- TODO: finish landing page -->
 # BB-SC
 
-![BB-SC](/figures/BB-SC.png)
+![BB-SC](/other/figures/BB-SC.png)

other/utils/structure.md

@@ -140,7 +140,7 @@
         - Deployment-Management
             - [BB_Eclipse_Ankaios](/BB-SC/2b-MWLayer/Deployment-Management/BB_Eclipse_Ankaios.md)
             - [BB_Eclipse_SymphonyAgents](/BB-SC/2b-MWLayer/Deployment-Management/BB_Eclipse_SymphonyAgents.md)
-            - [BB_CARISMA](/BB-SC/2b-MWLayer/Deployment-Management/BB_CARISMA)
+            - [BB_CARISMA](/BB-SC/2b-MWLayer/Deployment-Management/BB_CARISMA.md)
         - Diagnostics
             - [BB_Eclipse_OpenSOVD](/BB-SC/2b-MWLayer/Diagnostics/BB_Eclipse_OpenSOVD.md)
             - [BB_Eclipse_S-CORE_logging](/BB-SC/2b-MWLayer/Diagnostics/BB_Eclipse_S-CORE_logging.md)
@@ -176,7 +176,7 @@
             - [BB_OpenHarmony](/BB-SC/2a-OSLayer/Stacks/BB_OpenHarmony.md)
             - [BB_HaloOS](/BB-SC/2a-OSLayer/Stacks/BB_HaloOS.md)
         - Virtualization
-            - [BB_ L4Re](/BB-SC/2a-OSLayer/Virtualization/BB_%20L4Re.md)
+            - [BB_L4Re](/BB-SC/2a-OSLayer/Virtualization/BB_L4Re.md)
         - Time
 - [BB-CMU](/BB-CMU/README.md)
 - [BB-SC-TC](/BB-SC-TC/README.md)