Drop htmx: remove unpkg script, hx- attributes, refresh handler; add no-third-party-asset guard

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

AGENTS.md

@@ -30,7 +30,7 @@
 ## Locked Technical Defaults
 
 - stack: ASP.NET Core 8 LTS
-- UI: Razor Pages + HTMX
+- UI: Razor Pages
 - database: PostgreSQL
 - hosting target: `bifrost.gamecult.org` on Yggdrasil
 - deployment pattern: nginx + systemd + localhost-only Postgres, matching `E:\Projects\gamecult-ops`

README.md

@@ -36,7 +36,7 @@ It is closer to deployable now, but it is still not a finished internet-facing m
 ## Chosen Stack
 
 - ASP.NET Core 8 LTS
-- Razor Pages + HTMX
+- Razor Pages
 - PostgreSQL
 - Bifrost-native identity registration
 - GitHub OAuth for linked sign-in and repository integration

docs/bifrost-mvp-plan.md

@@ -4,7 +4,7 @@
 
 - Create Bifrost as a separate GameCult app repo and deploy it on Yggdrasil.
 - Build a member alpha, not a public launch.
-- Use ASP.NET Core 8 with Razor Pages + HTMX and PostgreSQL.
+- Use ASP.NET Core 8 with Razor Pages and PostgreSQL.
 - Support invite-only GitHub-linked members, GitHub-backed and internal work items, app-native governance, Reddit organizing threads, and internal ledgers.
 - Preserve the Labor Platform loop: user/member/patron demand raises work priority and reward pressure, contributors pick up valuable work, maintainers accept completion artifacts, and Bifrost credits the contributor plus any bounty/reward allocation.
 - Do not include Ethereum, wallets, DAO mechanics, or payout execution in v1.
@@ -13,7 +13,7 @@
 ## System Shape
 
 - One ASP.NET web app process for v1.
-- Server-rendered UI with HTMX for progressive interactions.
+- Server-rendered UI; no client-side framework or third-party script.
 - PostgreSQL as the system of record.
 - Bifrost-native identity registration for login, with GitHub OAuth available as a linked external identity.
 - GitHub App plus webhooks for issue and pull request lifecycle sync.

docs/concept-mill-votes-target.md

@@ -53,7 +53,7 @@ Bifrost head `bf83a93` (2026-10-10; `20d5efa` plus the prior-art note, docs only
 21. Main lacks EF migration discovery metadata on seven migrations: `20260622142000_AddBridgeActionIdentityProvenance`, `20260622202000_AddBridgeActionTargetSurfaceName` and `20260705190000_AddPatronSupportProjectAttribution` have neither `[DbContext]` nor `[Migration]`; `20260608210000_AddHeimdallUserIdentity`, `20260609143000_AddPatronSupportDerivation`, `20260609160000_AddExternalPatronProviderIntake` and `20260622165000_AddBifrostNativeIdentity` have `[Migration]` only; none of the seven has a `.Designer.cs`. EF discovers a migration only with both attributes, so `MigrateAsync` from main would skip them on a fresh database. `daedcc4` adds exactly those attributes (17 lines). The other five migrations have Designer files and are discovered. Migrations run at startup when `Bootstrap:ApplyMigrationsOnStartup` is true (`Features/Shared/ApplicationBootstrapper.cs:17-21`); the live env sets that key.
 22. Tests use EF InMemory (`tests/Bifrost.Web.Tests/Support/TestWebApplicationFactory.cs:52-58`), which enforces no unique index; a uniqueness rule must be proven in service code and in the model/migration metadata, not by an InMemory insert failing. `TestAuthHandler` offers two actors only: the bootstrap admin `test-admin`, or anonymous via header `X-Test-Anonymous` (`Support/TestAuthHandler.cs:17-37`). `CurrentBifrostActor` is a public record with a public constructor (`Features/Shared/CurrentBifrostActor.cs:5`), so service tests can build account and member actors directly. `Program` is `public partial` (`Program.cs:582`).
 23. Startup configuration rules live in one owner, `Features/Shared/StartupConfigurationValidator.cs`, which skips Development and Testing and throws on a missing production key (`:15-74`).
-24. The shared layout loads HTMX from `https://unpkg.com/htmx.org@1.9.12` (`Pages/Shared/_Layout.cshtml:65`); no page posts with `hx-post` today. Admin and vote handlers use plain Razor page handlers with `RedirectToPage()` (`Pages/App/Motions/Index.cshtml.cs:56-61`).
+24. The shared layout loads no third-party script or stylesheet (HTMX was dropped; `NoThirdPartyAssetTests` fails on any cross-origin `<script src>` or `<link href>`), and no page uses `hx-` attributes. Admin and vote handlers use plain Razor page handlers with `RedirectToPage()` (`Pages/App/Motions/Index.cshtml.cs:56-61`).
 25. Verification on Yggdrasil: `ygg-verify.sh`'s `dotnet` alias is `mcr.microsoft.com/dotnet/sdk:10.0`, which has no .NET 8 runtime for this `net8.0` test project; passing the image name `mcr.microsoft.com/dotnet/sdk:8.0` works (any other value is used as an image name). At `bf83a93`, `dotnet test tests/Bifrost.Web.Tests/Bifrost.Web.Tests.csproj -c Release --filter "FullyQualifiedName!~BridgeCliTests&FullyQualifiedName!~ProviderAdvertisementTests"` passes 29 of 29 (scratch log `bifrost-base-test-2.log`; that run's filter excluded only `BridgeCliTests`, and the two `ProviderAdvertisementTests` failed for want of Node). The other 37 tests shell out to Node: with no Node they fail to start the process; with Debian's Node 18 they fail on newer Node APIs (`bifrost-base-test-3.log`, 30 pass, 36 fail). Starfire has Node 24 and SDK 10.0.202 only. None of the cuts touch the Node tools.
 
 ### The Mill page

src/Bifrost.Web/Pages/App/Index.cshtml

@@ -14,12 +14,7 @@
                 governance pressure, and recent team activity in one place.
             </p>
         </div>
-        <button class="button secondary"
-                hx-get="@Url.Page("/App/Index", "Summary")"
-                hx-target="#summary-cards"
-                hx-swap="outerHTML">
-            Refresh snapshot
-        </button>
+        <a class="button secondary" href="@Url.Page("/App/Index")">Refresh snapshot</a>
     </div>
 
     <div id="summary-cards">

src/Bifrost.Web/Pages/App/Index.cshtml.cs

@@ -18,11 +18,4 @@ public sealed class IndexModel(
         Actor = await actorAccessor.GetAsync(cancellationToken);
         Snapshot = await snapshotService.GetAsync(Actor.UserAccount?.Id, cancellationToken);
     }
-
-    public async Task<PartialViewResult> OnGetSummaryAsync(CancellationToken cancellationToken)
-    {
-        Actor = await actorAccessor.GetAsync(cancellationToken);
-        Snapshot = await snapshotService.GetAsync(Actor.UserAccount?.Id, cancellationToken);
-        return Partial("_SummaryCards", Snapshot);
-    }
 }

src/Bifrost.Web/Pages/Index.cshtml

@@ -64,7 +64,7 @@
             </article>
             <article class="status-card">
                 <span>Stack</span>
-                <strong>ASP.NET Core 8 + Razor Pages + HTMX</strong>
+                <strong>ASP.NET Core 8 + Razor Pages</strong>
             </article>
             <article class="status-card">
                 <span>System of record</span>

src/Bifrost.Web/Pages/Mill/Vote.cshtml

@@ -28,15 +28,15 @@
     </p>
 
     <div class="mill-actions">
-        <form method="post" asp-page-handler="Up" asp-antiforgery="false" hx-boost="false">
+        <form method="post" asp-page-handler="Up" asp-antiforgery="false">
             <button class="button" type="submit">Up</button>
         </form>
-        <form method="post" asp-page-handler="Down" asp-antiforgery="false" hx-boost="false">
+        <form method="post" asp-page-handler="Down" asp-antiforgery="false">
             <button class="button" type="submit">Down</button>
         </form>
         @if (stance is not null)
         {
-            <form method="post" asp-page-handler="Retract" asp-antiforgery="false" hx-boost="false">
+            <form method="post" asp-page-handler="Retract" asp-antiforgery="false">
                 <button class="button ghost" type="submit">Retract</button>
             </form>
         }

src/Bifrost.Web/Pages/Shared/_Layout.cshtml

@@ -17,7 +17,7 @@
     <link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />
     <link rel="stylesheet" href="~/Bifrost.Web.styles.css" asp-append-version="true" />
 </head>
-<body hx-boost="true">
+<body>
     <div class="shell">
         <header class="topbar">
             <a class="brand" asp-page="/Index">
@@ -62,7 +62,6 @@
         </main>
     </div>
 
-    <script src="https://unpkg.com/htmx.org@1.9.12"></script>
     <script src="~/js/site.js" asp-append-version="true"></script>
     @await RenderSectionAsync("Scripts", required: false)
 </body>

tests/Bifrost.Web.Tests/NoThirdPartyAssetTests.cs

@@ -0,0 +1,67 @@
+using System.Net;
+using System.Text.RegularExpressions;
+using Bifrost.Web.Data;
+using Bifrost.Web.Domain;
+using Bifrost.Web.Tests.Support;
+using Microsoft.AspNetCore.Mvc.Testing;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Bifrost.Web.Tests;
+
+// The site serves every script and stylesheet itself: a page that pulls code or styling from another origin hands
+// that origin the visitor's session. Fails on any cross-origin <script src> / <link href> and on htmx remnants.
+public sealed partial class NoThirdPartyAssetTests(TestWebApplicationFactory factory) : IClassFixture<TestWebApplicationFactory>
+{
+    // Known standing exception, not a ruling: the layout loads Google Fonts (fonts.googleapis.com, fonts.gstatic.com).
+    // Remove the lookahead when the fonts are self-hosted so the guard becomes absolute.
+    [GeneratedRegex(@"<(?:script|link)\b[^>]*\b(?:src|href)\s*=\s*[""']?\s*(?:https?:)?//(?!fonts\.(?:googleapis|gstatic)\.com)", RegexOptions.IgnoreCase)]
+    private static partial Regex CrossOriginAsset();
+
+    [Fact]
+    public async Task Real_pages_load_no_third_party_asset()
+    {
+        var collection = "c" + Guid.NewGuid().ToString("N");
+        var identity = $"assets-{Guid.NewGuid():N}";
+        using (var scope = factory.Services.CreateScope())
+        {
+            var db = scope.ServiceProvider.GetRequiredService<BifrostDbContext>();
+            db.ConceptSubjects.Add(new ConceptSubject { Collection = collection, Key = "alpha", Title = "alpha", RegisteredAtUtc = DateTimeOffset.UtcNow });
+            db.UserAccounts.Add(new UserAccount { BifrostIdentity = identity, NormalizedBifrostIdentity = identity, DisplayName = identity });
+            await db.SaveChangesAsync();
+        }
+
+        using var client = factory.CreateClient(new WebApplicationFactoryClientOptions { AllowAutoRedirect = false, BaseAddress = new Uri("https://localhost") });
+        var pages = new (string Path, string? Identity, bool Anonymous)[]
+        {
+            ("/", null, true),
+            ($"/mill/{collection}/alpha", null, true),
+            ($"/mill/{collection}/alpha", null, false),
+            ("/App", null, false),
+            ("/auth/sign-in", null, true),
+            ("/auth/bifrost/register", null, true),
+            ("/auth/bifrost/consent", identity, false),
+        };
+
+        foreach (var (path, who, anonymous) in pages)
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get, path);
+            if (anonymous)
+            {
+                request.Headers.Add("X-Test-Anonymous", "true");
+            }
+            else if (who is not null)
+            {
+                request.Headers.Add("X-Test-Bifrost-Identity", who);
+            }
+
+            using var response = await client.SendAsync(request);
+            Assert.True(response.StatusCode == HttpStatusCode.OK, $"{path} returned {response.StatusCode}");
+            var html = await response.Content.ReadAsStringAsync();
+            Assert.False(string.IsNullOrWhiteSpace(html), path);
+            Assert.DoesNotContain("unpkg.com", html, StringComparison.OrdinalIgnoreCase);
+            Assert.DoesNotContain("htmx", html, StringComparison.OrdinalIgnoreCase);
+            Assert.DoesNotContain("hx-", html, StringComparison.OrdinalIgnoreCase);
+            Assert.False(CrossOriginAsset().IsMatch(html), $"{path} loads a cross-origin asset");
+        }
+    }
+}