feat(dashboard): auto-slug app names and infer route host kind from input

Two related polish passes on forms the operator hits most.

App create form: the slug field used to come before the name field and
demanded the operator hand-roll a valid slug. Now the name field comes
first and the slug is derived from it live, GitLab-style — Unicode
NFKD-decomposed, combining marks stripped (so `Café` → `cafe`), `ß`
mapped to `ss`, non-`[a-z0-9]` runs collapsed to `-`, trimmed and capped
at the backend's 63-char limit. The auto-sync releases as soon as the
operator edits the slug manually, and re-engages if they clear it. The
slug input itself runs every keystroke and paste through the same
normalizer, so dirty input never reaches the form state.

Route create form: the three-way host-kind `<select>` plus a sometimes-
disabled input was confusing — operators routinely picked the wrong
kind, typed a host the app didn't claim, and only saw the error after
hitting Create. Replace with a single text input that infers the kind
from what's there (`*` → any, `*.foo.com` → wildcard, `foo.com` →
strict), shows the detected kind as a colored chip beside the field, and
suggests the app's existing domain claims via a `<datalist>`. The same
matching logic the backend runs in `validate_route_host_against_app`
now lives in `route-utils.ts` so the form can surface a soft "not
covered by any claim" warning *before* submit. Path also pre-fills to
`/` so the most common case is one click away.

Lockfile drift from `npm install` (pre-existing 0.5.0 → 0.5.1 version
sync, npm metadata cleanup) is folded in here since it surfaced during
this work.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

dashboard/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "picloud-dashboard",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "picloud-dashboard",
-      "version": "0.5.0",
+      "version": "0.5.1",
       "dependencies": {
         "@codemirror/autocomplete": "^6.20.2",
         "@codemirror/commands": "^6.10.3",
@@ -1275,7 +1275,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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@@ -1318,7 +1317,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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         "debug": "^4.4.1",
@@ -1398,7 +1396,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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@@ -1455,7 +1452,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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         "@typescript-eslint/types": "8.59.4",
@@ -1563,7 +1559,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1815,7 +1810,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -2217,7 +2211,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
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@@ -3010,7 +3003,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -3038,7 +3030,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "nanoid": "^3.3.12",
         "picocolors": "^1.1.1",
@@ -3172,7 +3163,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
       },
@@ -3433,7 +3423,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jridgewell/remapping": "^2.3.4",
         "@jridgewell/sourcemap-codec": "^1.5.0",
@@ -3614,7 +3603,6 @@
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       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -3677,7 +3665,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.25.0",
         "fdir": "^6.4.4",