Complete spec: Code alignment and documentation cleanup

- Ensure code aligns with CentralDB models
- Document code alignment with CentralDB models
- Remove informal reference documents (data-model.md, DB_API_SPEC.json, GARMINSYNC_SPEC.md)
- Run linters and formatters (black, isort, mypy)
- Update project configuration files
- Add .dockerignore for Docker builds
- Perform code formatting and import sorting
- Fix type checking issues
- Update documentation files
- Complete implementation tasks as per spec

.kilocode/workflows/speckit.constitution.md

@@ -1,5 +1,9 @@
 ---
 description: Create or update the project constitution from interactive or provided principle inputs, ensuring all dependent templates stay in sync.
+handoffs: 
+  - label: Build Specification
+    agent: speckit.specify
+    prompt: Implement the feature specification based on the updated constitution. I want to build...
 ---
 
 ## User Input
@@ -25,9 +29,9 @@ Follow this execution flow:
    - Otherwise infer from existing repo context (README, docs, prior constitution versions if embedded).
    - For governance dates: `RATIFICATION_DATE` is the original adoption date (if unknown ask or mark TODO), `LAST_AMENDED_DATE` is today if changes are made, otherwise keep previous.
    - `CONSTITUTION_VERSION` must increment according to semantic versioning rules:
-     * MAJOR: Backward incompatible governance/principle removals or redefinitions.
-     * MINOR: New principle/section added or materially expanded guidance.
-     * PATCH: Clarifications, wording, typo fixes, non-semantic refinements.
+     - MAJOR: Backward incompatible governance/principle removals or redefinitions.
+     - MINOR: New principle/section added or materially expanded guidance.
+     - PATCH: Clarifications, wording, typo fixes, non-semantic refinements.
    - If version bump type ambiguous, propose reasoning before finalizing.
 
 3. Draft the updated constitution content:
@@ -65,6 +69,7 @@ Follow this execution flow:
    - Suggested commit message (e.g., `docs: amend constitution to vX.Y.Z (principle additions + governance update)`).
 
 Formatting & Style Requirements:
+
 - Use Markdown headings exactly as in the template (do not demote/promote levels).
 - Wrap long rationale lines to keep readability (<100 chars ideally) but do not hard enforce with awkward breaks.
 - Keep a single blank line between sections.