feat: governance kernel, deployment hardening, local-dev stack

Adds proposals + proposal_votes + policies + incidents + incident_updates
tables with full RLS, async voting flow, dismissal-appeal pathway,
versioned policies with provenance, and an anonymous-incident token mode.
Adds per-space configurable areas, financial visibility settings, member
self-profile + COI disclosure, and a mission statement that renders in
the app footer.

Reorganises lib/actions.ts into per-domain files (tasks, projects,
members, payments, contacts, knowledge-base, secrets, area-leads,
settings, imports, proposals, incidents, policies, areas) plus a barrel.
Adds lib/permissions.ts and lib/auth-helpers.ts so action bodies stop
duplicating the user-to-member-to-role check. Wires every action that has
a Zod schema; introduces a flexibleDateTime preprocessor so HTML date
pickers no longer hit "Invalid datetime".

Hardens RLS: drops NOT NULL on space_members.user_id for offline members,
adds a privilege-escalation trigger that blocks self-edits to role / tier
/ status / approved / has_card_access / space_id, closes four
cross-tenant holes in the governance kernel, and adds a partial unique
index so two admins cannot concurrently activate two drafts of the same
policy slug.

Ships every deployment artifact: Dockerfile, docker-compose,
.do/app.yaml, .env.example, /api/health, plus a managed-Supabase guide
(docs/DEPLOYMENT.md), an end-to-end self-hosted Droplet guide
(docs/DEPLOY_DO_SELFHOSTED.md), and a Supabase-CLI local-dev quickstart
(docs/LOCAL_DEV.md). Replaces middleware.ts with proxy.ts for Next.js 16.
Adds scripts/schema.sql as the canonical idempotent full deploy plus
fourteen numbered incremental migrations.

Adds scripts/seed.sql so a fresh local DB renders something instead of
empty pages: a demo space, five members across all roles, a v1 code of
conduct, three proposals in different states with seven votes already
cast, an open incident, a project, three tasks, a KB entry, and matching
activity-log rows.

Replaces v0-generated test scaffolding with 266 real tests across
__tests__/{actions,auth-helpers,components,governance,permissions,
security,utils,validations}.test.ts. Adds react-markdown + remark-gfm
for proposal / incident / policy body rendering. Deletes four dead v0
fix-* scripts, the unused components/app-shell.tsx, and the duplicate
app/auth/login/page.tsx.

Routes (31 total): /api/health, /api/paypal/sync, /auth/callback, /,
/login, /signup, /signup/confirm, /dashboard, /tasks, /projects,
/members, /payments, /financials, /contacts, /ops, /ops/[id], /ops/new,
/proposals, /proposals/[id], /proposals/new, /incidents, /incidents/[id],
/incidents/new, /policies, /policies/[slug], /policies/new, /profile,
/recruitment, /settings, /comms, /import.

Full pass-by-pass history is in docs/HANDOFF.md; the roadmap is in
docs/GOVERNANCE_FEATURES.md.

app/(app)/policies/[slug]/page.tsx

@@ -0,0 +1,108 @@
+import Link from 'next/link'
+import { redirect, notFound } from 'next/navigation'
+import { createClient } from '@/lib/supabase/server'
+import type { Policy } from '@/lib/types'
+import { PolicyActions } from './policy-actions'
+import { MarkdownBody } from '@/components/markdown'
+
+export const dynamic = 'force-dynamic'
+
+export default async function PolicyDetailPage({ params }: { params: Promise<{ slug: string }> }) {
+  const { slug } = await params
+  const supabase = await createClient()
+  const { data: { user } } = await supabase.auth.getUser()
+  if (!user) redirect('/login')
+
+  const { data: member } = await supabase
+    .from('space_members')
+    .select('space_id, role')
+    .eq('user_id', user.id)
+    .in('status', ['current', 'unverified', 'late'])
+    .maybeSingle()
+  if (!member?.space_id) redirect('/signup')
+
+  const { data: versionsRaw } = await supabase
+    .from('policies')
+    .select('*')
+    .eq('space_id', member.space_id)
+    .eq('slug', slug)
+    .order('version', { ascending: false })
+
+  const versions = (versionsRaw ?? []) as unknown as Policy[]
+  if (versions.length === 0) notFound()
+
+  // Pick the currently-active version, or the latest version, for the primary view.
+  const current = versions.find(p => p.status === 'active') ?? versions[0]
+  const isAdminOrBoard = member.role === 'admin' || member.role === 'board'
+
+  return (
+    <div className="min-h-screen bg-background">
+      <div className="bg-sidebar px-4 md:px-6 py-3 flex items-center gap-3">
+        <Link href="/policies" className="text-white/70 hover:text-white font-sans text-sm">
+          ← Policies
+        </Link>
+      </div>
+
+      <div className="p-4 md:p-6 max-w-3xl space-y-6">
+        <header className="bg-card rounded border border-border p-5">
+          <h1 className="font-sans text-xl font-semibold text-foreground mb-1">{current.title}</h1>
+          <p className="font-mono text-[10px] text-muted-foreground">
+            {current.slug}
+            {current.section_ref ? ` · §${current.section_ref}` : ''}
+            {' · v'}{current.version}
+            {' · '}
+            {current.status}
+            {current.effective_at ? ` · effective ${new Date(current.effective_at).toLocaleDateString()}` : ''}
+          </p>
+        </header>
+
+        {current.body_plain && (
+          <section className="bg-card rounded border border-border p-5">
+            <p className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase mb-2">
+              Plain language
+            </p>
+            <MarkdownBody content={current.body_plain} />
+          </section>
+        )}
+
+        <section className="bg-card rounded border border-border p-5">
+          <p className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase mb-2">
+            Formal text
+          </p>
+          <MarkdownBody content={current.body_formal} />
+        </section>
+
+        {isAdminOrBoard && (
+          <PolicyActions policy={current} />
+        )}
+
+        <section className="bg-card rounded border border-border p-5">
+          <p className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase mb-3">
+            Version history ({versions.length})
+          </p>
+          <ul className="divide-y divide-border">
+            {versions.map(v => (
+              <li key={v.id} className="py-2 flex items-center justify-between">
+                <div>
+                  <p className="font-sans text-sm">v{v.version} · {v.status}</p>
+                  <p className="font-mono text-[10px] text-muted-foreground">
+                    created {new Date(v.created_at).toLocaleDateString()}
+                    {v.effective_at ? ` · effective ${new Date(v.effective_at).toLocaleDateString()}` : ''}
+                    {v.adopted_by_proposal_id ? (
+                      <>
+                        {' · '}
+                        <Link href={`/proposals/${v.adopted_by_proposal_id}`} className="text-primary hover:underline">
+                          adopted by proposal
+                        </Link>
+                      </>
+                    ) : ''}
+                  </p>
+                </div>
+              </li>
+            ))}
+          </ul>
+        </section>
+      </div>
+    </div>
+  )
+}

app/(app)/policies/[slug]/policy-actions.tsx

@@ -0,0 +1,134 @@
+'use client'
+
+import { useState, useTransition } from 'react'
+import { useRouter } from 'next/navigation'
+import { supersedePolicy, updatePolicyStatus } from '@/lib/actions'
+import { policyStatuses } from '@/lib/validations'
+import type { Policy } from '@/lib/types'
+
+export function PolicyActions({ policy }: { policy: Policy }) {
+  const router = useRouter()
+  const [isPending, startTransition] = useTransition()
+  const [error, setError] = useState('')
+  const [showSupersede, setShowSupersede] = useState(false)
+  const [newBody, setNewBody] = useState(policy.body_formal)
+  const [newPlain, setNewPlain] = useState(policy.body_plain ?? '')
+
+  function run<T>(fn: () => Promise<T>, after?: () => void) {
+    setError('')
+    startTransition(async () => {
+      const r = (await fn()) as unknown as { error?: string }
+      if (r && r.error) setError(r.error)
+      else after?.()
+      router.refresh()
+    })
+  }
+
+  return (
+    <div className="space-y-3">
+      <div className="bg-card rounded border border-border p-5">
+        <p className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase mb-3">
+          Manage
+        </p>
+        <div className="flex flex-wrap gap-2">
+          {policy.status !== 'active' && (
+            <button
+              type="button"
+              disabled={isPending}
+              onClick={() => run(() => updatePolicyStatus(policy.id, 'active'))}
+              className="font-sans text-xs border border-border px-3 py-1.5 rounded hover:border-primary hover:text-primary"
+            >
+              Activate v{policy.version}
+            </button>
+          )}
+          {policy.status === 'active' && (
+            <>
+              <button
+                type="button"
+                onClick={() => setShowSupersede(s => !s)}
+                className="font-sans text-xs border border-border px-3 py-1.5 rounded hover:border-primary hover:text-primary"
+              >
+                {showSupersede ? 'Cancel supersede' : 'Supersede with new version'}
+              </button>
+              <button
+                type="button"
+                disabled={isPending}
+                onClick={() => run(() => updatePolicyStatus(policy.id, 'deprecated'))}
+                className="font-sans text-xs border border-border px-3 py-1.5 rounded hover:border-orange-500 hover:text-orange-600"
+              >
+                Deprecate
+              </button>
+            </>
+          )}
+          {policyStatuses
+            .filter(s => s !== policy.status && s !== 'active')
+            .map(s => (
+              <button
+                key={s}
+                type="button"
+                disabled={isPending}
+                onClick={() => run(() => updatePolicyStatus(policy.id, s))}
+                className="font-sans text-xs border border-border px-3 py-1.5 rounded text-muted-foreground hover:text-foreground"
+              >
+                Set {s}
+              </button>
+            ))}
+        </div>
+      </div>
+
+      {showSupersede && (
+        <div className="bg-card rounded border border-border p-5">
+          <p className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase mb-3">
+            Supersede v{policy.version} with v{policy.version + 1}
+          </p>
+          <div className="space-y-3">
+            <div>
+              <label className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase block mb-1">
+                Plain language (optional)
+              </label>
+              <textarea
+                value={newPlain}
+                onChange={e => setNewPlain(e.target.value)}
+                rows={4}
+                maxLength={100000}
+                className="w-full bg-background border border-border text-foreground font-sans text-sm rounded px-3 py-2 focus:outline-none focus:border-primary"
+              />
+            </div>
+            <div>
+              <label className="font-mono text-[10px] tracking-widest text-muted-foreground uppercase block mb-1">
+                Formal text
+              </label>
+              <textarea
+                value={newBody}
+                onChange={e => setNewBody(e.target.value)}
+                rows={12}
+                maxLength={100000}
+                className="w-full bg-background border border-border text-foreground font-sans text-sm rounded px-3 py-2 focus:outline-none focus:border-primary"
+              />
+            </div>
+            <button
+              type="button"
+              disabled={isPending}
+              onClick={() =>
+                run(
+                  () =>
+                    supersedePolicy({
+                      policyId: policy.id,
+                      body_formal: newBody,
+                      body_plain: newPlain || null,
+                    }),
+                  () => setShowSupersede(false),
+                )
+              }
+              className="bg-primary text-white font-sans text-sm font-medium px-4 py-2 rounded hover:bg-primary/90 transition disabled:opacity-50"
+            >
+              {isPending ? 'Creating draft...' : 'Create draft v' + (policy.version + 1)}
+            </button>
+          </div>
+        </div>
+      )}
+
+      {error && <p className="font-mono text-xs text-red-500">{error}</p>}
+    </div>
+  )
+}