feat: direct TCP URI with SSL toggle and optional password auth (#635)

* feat: direct TCP URI with SSL toggle and optional password auth

Replaces the heuristic-driven direct-connection model with a user-controlled
one. The Add Host dialog now exposes structured Host, Port, "Use SSL", and
masked Password fields that compose the canonical
`tcp://host:port?ssl=true&password=xxx` URI used as the storage form.

The daemon gains optional shared-secret auth: `Authorization: Bearer <pw>` on
HTTP and `Sec-WebSocket-Protocol: paseo.bearer.<pw>` on the WS upgrade
(browser WebSocket can't set custom headers). Configured via config.json
`auth.password` or `PASEO_PASSWORD` env. Off by default — old clients keep
working unchanged.

The `port === 443` heuristic for ws/wss is gone; the explicit `useTls` flag
drives scheme selection at every call site.

* fix: stabilize direct tcp auth ci checks

* fix: restore fetch stub in bootstrap smoke test

* fix(app): collapse Advanced section in add-host modal

* feat(server): hash daemon password in config

* fix: update lockfile signatures and Nix hash

* Improve direct TCP auth failures

* Fix workspace cwd updates after rebase

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

packages/server/src/shared/host-connection-schema.ts

@@ -0,0 +1,12 @@
+import { z } from "zod";
+
+export const DirectTcpHostConnectionSchema = z.object({
+  id: z.string(),
+  type: z.literal("directTcp"),
+  endpoint: z.string(),
+  useTls: z.boolean().optional().default(false),
+  password: z.string().optional(),
+});
+
+export type DirectTcpHostConnection = z.input<typeof DirectTcpHostConnectionSchema>;
+export type NormalizedDirectTcpHostConnection = z.output<typeof DirectTcpHostConnectionSchema>;