Enhance text note functionality: add API for creating and managing written notes, implement draft saving, and improve UI for note capture modes

.github/copilot-instructions.md

@@ -19,6 +19,7 @@ Faerro KB is a self-hosted voice-note inbox designed for an iPhone-installed web
 - Preserve the local-first capture and retry behavior when changing the PWA, API, or service worker. Prefer additive, recoverable data changes.
 - Follow the existing small stack: FastAPI, SQLite/FTS5, and the vanilla JavaScript PWA. Avoid new dependencies unless they solve a real need and can run on the user's infrastructure.
 - Keep changes scoped. Inspect the owning code path, add or update focused tests for behavior changes, and run the narrowest relevant checks available.
+- If tooling required for a relevant test or check is missing, tell the user which tool is needed and prompt them to install it on the local machine; do not silently skip the check.
 - Update README/UI documentation when behavior, deployment, security, backup, or platform limitations change. Do not claim a capability that iOS or browsers cannot guarantee.
 - Preserve user data and existing local changes. Do not perform destructive migrations or remove stored recordings without explicit confirmation and a recovery path.
 - At the end of each chat, check whether it introduced durable project requirements, decisions, workflows, or corrections missing from these instructions or a relevant skill. Update the narrowest relevant guidance file when the change is clearly reusable and within the user's authorized scope; otherwise note the gap and ask before expanding scope. Do not record transient task details or sensitive information.

.github/skills/faerro-kb-development/SKILL.md

@@ -26,5 +26,6 @@ Use this skill for feature work, bug fixes, and reviews in this repository. The
 
 - Add or update focused tests for changed behavior, especially queue acknowledgement, retries, and data-preserving transcript workflows.
 - Run the narrowest relevant test, compile, or lint check available, then document any important limitation or unverified check.
+- If tooling required for a relevant test or check is missing, tell the user which tool is needed and prompt them to install it locally instead of silently skipping the check.
 - Update `README.md` when setup, deployment, backups, privacy, or platform behavior changes.
 - Never claim that iOS guarantees background execution or that browser storage is permanent.