Migrate to new Gitea instance (gitea.wbd-rd.nl)

- Update all submodule URLs from gitea.centraal.wbd-rd.nl to gitea.wbd-rd.nl
- Add settler as proper submodule in .gitmodules
- Add agent skills, function anchors, decisions, and improvements
- Add Docker configuration and scripts
- Add manuals and third_party docs
- Update .gitignore with secrets and build artifacts
- Remove stale .tgz build artifact

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.agents/skills/evolv-instrumentation-assets/SKILL.md

@@ -8,6 +8,14 @@ description: Engineer measurement and instrumentation behavior for EVOLV assets.
 ## Mission
 Ensure measurements are trustworthy, well-modeled, and usable by control and analytics logic.
 
+## Harness Execution Contract
+- Ground changes in current measurement definitions and downstream consumers.
+- Define invariants before edits:
+  - unit consistency and conversion transparency
+  - explicit quality-state handling
+  - no silent coercion that hides sensor faults
+- Provide evidence for data-quality transitions and fallback behavior.
+
 ## Scope
 - `nodes/measurement/`
 - `nodes/generalFunctions/src/helper/measurement*`
@@ -40,3 +48,8 @@ Return:
 - validation and fallback rules
 - file/test changes
 - open instrumentation risks for commissioning
+
+Decision interview triggers:
+- changed units or semantics for released measurements
+- new fallback logic that may mask real field failures
+- altered quality thresholds affecting control decisions