Clear the Dependabot findings

Dependabot alerts were switched on for this repo today and reported 12 open
findings. Ten are fixed here; the other two are addressed below.

gRPC 1.83.0 -> 1.83.1, in all nine modules that require it. This is
GHSA-vp52-pcj8-j9qc / CVE-2026-84304, heap memory exhaustion via HTTP/2 DATA
frame fragmentation, affecting <= 1.83.0. It matters more than the version
delta suggests: ingest/ is a gRPC listener deliberately exposed to the internet
on :4317, so a remote OOM is reachable. mTLS narrows that to holders of a
client certificate, which is why this was not an emergency, but the fix is one
patch release away and there is no reason to carry it.

golang.org/x/oauth2 0.21.0 -> 0.27.0 in deploy/operator, an indirect
dependency (GHSA-6v2p-p543-phr9). enterprise/ was already past it at 0.36.0.

npm cookie 0.6.0 -> 0.7.2, via an overrides entry rather than a dependency
bump. @sveltejs/kit requires ^0.6.0 and still does at 2.70.3, the latest
release, so there is no version of kit that resolves this on its own -- an
override is the only route that does not involve waiting on upstream.

Three incidental changes came out of `go mod tidy` and are not mine:
genproto/googleapis/rpc moved forward as a transitive of the new grpc; pgx/v5
was reclassified from indirect to direct in enterprise/, which is simply
correct, since audit.go and cmd/enterprise-auth import it; and the proto
replace directive shuffled between require blocks at the same version.

The twelfth finding, lru (GHSA-rhfx-m35p-ff5j), is not fixed and is not
fixable here -- see the note in the pull request. It is CVSS 0, a Stacked
Borrows soundness issue in IterMut, and reaching a patched version means
tantivy 0.22 -> 0.26, which is a search engine migration rather than a
dependency bump.

Verified: all ten Go modules build, 40 test packages pass, the web app builds
and svelte-check reports 0 errors across 288 files.

web/package-lock.json

@@ -7,6 +7,7 @@
 		"": {
 			"name": "web",
 			"version": "0.0.1",
+			"license": "AGPL-3.0-only",
 			"dependencies": {
 				"@codemirror/autocomplete": "^6.20.3",
 				"@codemirror/commands": "^6.10.4",
@@ -646,9 +647,9 @@
 			}
 		},
 		"node_modules/cookie": {
-			"version": "0.6.0",
-			"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
-			"integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==",
+			"version": "0.7.2",
+			"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+			"integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
 			"dev": true,
 			"license": "MIT",
 			"engines": {

web/package.json

@@ -30,5 +30,8 @@
 		"@codemirror/view": "^6.43.8",
 		"echarts": "^6.1.0",
 		"gridstack": "^11.5.0"
+	},
+	"overrides": {
+		"cookie": "^0.7.2"
 	}
 }