fix(admin): resolve all 266 TypeScript errors, enable strict build

Eliminate the pre-existing TS errors that were masked by
next.config.js `typescript.ignoreBuildErrors: true`, then turn the flag
OFF so the compiler is a real safety net for future changes. `next build`
and `tsc --noEmit` now pass with 0 errors.

The errors were not cosmetic — several exposed real latent bugs hidden by
the flag, e.g. the drafting-engine ConstraintEnforcer read non-existent
fields (`t.rule.dsfaRequired`, `d.required`, `r.title`), so its DSFA hard
gate and risk-flag checks were silently no-ops; scopeDefaults read
snake_case CompanyProfile fields that never matched the camelCase type
(generator defaults never populated). Both fixed by aligning code to the
current types.

Highlights:
- Vitest globals: add vitest-globals.d.ts (config already had globals:true)
  so the test files type-check; exclude Playwright specs from vitest.
- Add a minimal ambient `pg` module declaration (no @types/pg installed).
- Fix Next 15 route handlers to await Promise params.
- Reconcile drifted types across loeschfristen, compliance-scope, document-
  generator, drafting-engine, vendor-compliance, agent and more.

Pre-existing (NOT caused here, proven by stashing the diff): 3 vitest
logic tests still fail — getNextStep (2) and buildDocumentScope priority (1).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

admin-compliance/app/sdk/iace/[projectId]/mitigations/_hooks/useMitigations.ts

@@ -31,7 +31,7 @@ export function useMitigations(projectId: string) {
         const raw = json.mitigations || json || []
         // Map API fields (name, hazard_id) to frontend fields (title, linked_hazard_ids/names)
         const hazardMap = Object.fromEntries(hazardList.map((h) => [h.id, h.name]))
-        const hazardStatesMap = Object.fromEntries(hazardList.map((h) => [h.id, (h as Record<string, unknown>).operational_states || []]))
+        const hazardStatesMap = Object.fromEntries(hazardList.map((h) => [h.id, (h as unknown as Record<string, unknown>).operational_states || []]))
         const mits: Mitigation[] = raw.map((m: Record<string, unknown>) => ({
           id: m.id as string,
           title: (m.title || m.name || '') as string,