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-# Project Constraints
-
-## Delivery sequencing
-
-- Start with `apps/control-plane` first.
-- Deliver the core backend in 2 steps, not 3:
-  1. `control-server` plus `node-service` contract and runtime loop
-  2. web control plane on top of that stable backend seam
-- Do not start web UI work until the `control-server` and `node-service` contract is stable.
-
-## Architecture
-
-- `control-server` is the clean backend contract that other parts consume.
-- `apps/node-agent` reports into `apps/control-plane`.
-- `apps/web` reads from `apps/control-plane`.
-- Local mount UX is issued by `apps/control-plane`.
-
-## Backend contract priorities
-
-- The first backend seam must cover:
-  - node enrollment
-  - node heartbeats
-  - node export reporting
-  - control-server persistence of nodes and exports
-  - mount profile issuance for one export
-- `control-server` should own:
-  - node auth
-  - user auth
-  - mount issuance
-
-## Mount profile shape
-
-- Prefer standard WebDAV username and password semantics for Finder compatibility.
-- The consumer-facing mount profile should behave like:
-  - export id
-  - display name
-  - mount URL
-  - username
-  - password
-  - readonly
-  - expires at
-
-## Service boundary
-
-- Keep `node-service` limited to the WebDAV mount surface.
-- Route admin and control actions through `control-server`, not directly from browsers to `node-service`.
-
-## User-scoped auth requirements
-
-- Remove the bootstrap token flow for v1.
-- Use a single user-provided username and password across the entire stack:
-  - `apps/node-agent` authenticates with the user's username and password from environment variables
-  - web app sessions authenticate with the same username and password
-  - WebDAV and Finder authentication use the same username and password
-- Do not generate separate WebDAV credentials for users.
-- Nodes and exports must be owned by users and scoped so authenticated users can only view and mount their own resources.
-- Package the node binary for user download and distribution.
-
-## V1 simplicity
-
-- Keep the implementation as simple as possible.
-- Do not over-engineer the auth or distribution model for v1.
-- Prefer the smallest change set that makes the product usable and distributable.
-
-## Live operations
-
-- If modifying the live Netcup deployment, only stop the `betternas` node process unless the user explicitly asks to modify the deployed backend service.
-- When setting up a separate machine as a node in this session, access it through `computer ssh hiromi`.
-
-## Node availability UX
-
-- Prefer default UI behavior that does not present disconnected nodes as mountable.
-- Surface connected and disconnected node state in the product when node availability is exposed.
-
-## Product docs UX
-
-- Remove operational setup instructions from the main control-plane page when they are better represented as dedicated end-to-end product docs.
-- Prefer a separate clean docs page for simple end-to-end usage instructions.
-- Keep the root `README.md` extremely minimal: no headings, just 5-6 plain lines that explain the architecture simply and cleanly.
-- Make the default root route land on the main landing page instead of the auth-gated app.
-- Add a plain `Docs` button to the left of the sign-in button on the main landing page.
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