feat(gateway): expose generic harness catalog and selection

Add the Slice-Zero catalog and selection HTTP surfaces for P3 Task 3: GET /api/harnesses, GET /api/harnesses/:harnessId/catalog, GET+PUT /api/chat/preferences/selection. Scope is always server-derived via scopeFromUser(CurrentUser); selection tuples are validated against the live catalog with no fallback substitution and persisted in a transitional owner-scoped in-memory store. HarnessModule is wired into AppModule. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01ESFAnh2t9HmLwng8oW95St
2026-08-11 19:56:11 -05:00
parent a186922e3a
commit f16f206a0a
9 changed files with 649 additions and 0 deletions
@@ -0,0 +1,65 @@
+import {
+  Controller,
+  Get,
+  HttpException,
+  HttpStatus,
+  Inject,
+  Param,
+  UseGuards,
+} from '@nestjs/common';
+import { AuthGuard } from '../auth/auth.guard.js';
+import { CurrentUser } from '../auth/current-user.decorator.js';
+import { scopeFromUser, type AuthenticatedUserLike } from '../auth/session-scope.js';
+import { HarnessAdapterUnavailableError, HarnessRegistry } from './harness.registry.js';
+import { HARNESS_REGISTRY } from './harness.tokens.js';
+import {
+  readContextFromScope,
+  toHarnessSummary,
+  toSafeCatalog,
+  type HarnessCatalogDto,
+  type HarnessSummaryDto,
+} from './harness.dto.js';
+
+/**
+ * Generic harness catalog surface. It exposes only harness-neutral, browser-safe
+ * fields (identity, capabilities, provider/model catalog) — never executables,
+ * native paths, home/cwd, env, or secrets. There is NO provider-probe route here;
+ * `/api/providers` and `POST /api/providers/test` are intentionally out of scope.
+ */
+@Controller('api/harnesses')
+@UseGuards(AuthGuard)
+export class HarnessController {
+  constructor(@Inject(HARNESS_REGISTRY) private readonly registry: HarnessRegistry) {}
+
+  @Get()
+  async list(@CurrentUser() user: AuthenticatedUserLike): Promise<HarnessSummaryDto[]> {
+    const context = readContextFromScope(scopeFromUser(user));
+    const summaries: HarnessSummaryDto[] = [];
+    for (const adapter of this.registry.list()) {
+      summaries.push(toHarnessSummary(await adapter.describe(context)));
+    }
+    return summaries;
+  }
+
+  @Get(':harnessId/catalog')
+  async catalog(
+    @CurrentUser() user: AuthenticatedUserLike,
+    @Param('harnessId') harnessId: string,
+  ): Promise<HarnessCatalogDto> {
+    const context = readContextFromScope(scopeFromUser(user));
+    let adapter;
+    try {
+      adapter = this.registry.get(harnessId);
+    } catch (error) {
+      if (error instanceof HarnessAdapterUnavailableError) {
+        // Typed failure — NEVER a fallback catalog for an unknown harness id.
+        throw new HttpException(
+          { code: error.code, message: error.message, harnessId },
+          HttpStatus.NOT_FOUND,
+        );
+      }
+      throw error;
+    }
+    return toSafeCatalog(await adapter.catalog(context));
+  }
+}