[codex] Add local Cloud Upstream sync (#6548)

## Thinking Path

> - Paperclip is the control plane for AI-agent companies.
> - Operators need a path to move local company state toward Paperclip
Cloud without losing local-first control.
> - The Cloud Upstream flow needs API, persistence, CLI, and board UI
surfaces that agree on the same manifest/run model.
> - The existing branch had the feature work plus UX and error-handling
follow-ups.
> - This pull request packages the remaining Cloud Upstream sync work
into one standalone branch.
> - The benefit is an inspectable local-to-cloud sync workflow with
preview, conflicts, activation, and captured UX review states.

## What Changed

- Added Cloud Upstream shared types, server routes/services, and
persisted run schema/migration.
- Added Paperclip Cloud CLI sync helpers and local connection storage.
- Added the Cloud Upstream board UI, settings entry points, query keys,
and UX lab page.
- Added preview/activation checklist behavior, redirect handling,
manifest-only preview support, friendly errors, in-flight hints, and
entity count summaries.

## Verification

- `pnpm --filter @paperclipai/plugin-sdk build`
- `NODE_ENV=test pnpm exec vitest run cli/src/__tests__/cloud.test.ts
server/src/__tests__/instance-settings-routes.test.ts
server/src/__tests__/instance-settings-service.test.ts
ui/src/pages/CloudUpstream.test.tsx
ui/src/components/CompanySettingsSidebar.test.tsx`
- `NODE_ENV=test pnpm exec vitest run
server/src/__tests__/cloud-upstreams.test.ts`

Worktree setup note: the isolated worktree install skipped native sqlite
build scripts, so I copied the already-built local sqlite binding from
the main checkout before running
`server/src/__tests__/cloud-upstreams.test.ts`. The test then passed.

## Risks

- Medium: this adds a database migration and a broad feature path across
CLI/server/UI.
- Merge order: this is the only PR in this split with a DB migration;
merge it before any future Cloud Upstream migration follow-up.
- Mitigation: the PR is based directly on current `origin/master`, has
targeted route/service/UI tests, and keeps the feature behind existing
experimental Cloud Sync settings.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- OpenAI GPT-5 Codex via `codex_local`, tool-enabled coding session;
exact context window not exposed by this runtime.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, screenshot artifacts are
intentionally omitted per reviewer request
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

packages/db/src/migrations/0089_cloud_upstreams.sql

@@ -0,0 +1,71 @@
+CREATE TABLE IF NOT EXISTS "cloud_upstream_connections" (
+  "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+  "company_id" uuid NOT NULL,
+  "remote_url" text NOT NULL,
+  "source_instance_id" text NOT NULL,
+  "source_instance_fingerprint" text NOT NULL,
+  "source_public_key" text NOT NULL,
+  "private_key_pem" text NOT NULL,
+  "token_status" text NOT NULL,
+  "scopes" text[] DEFAULT '{}' NOT NULL,
+  "authorized_global_user_id" text,
+  "access_token" text,
+  "token_id" text,
+  "token_expires_at" timestamp with time zone,
+  "target_stack_id" text NOT NULL,
+  "target_stack_slug" text,
+  "target_stack_display_name" text,
+  "target_company_id" text NOT NULL,
+  "target_origin" text NOT NULL,
+  "target_primary_host" text NOT NULL,
+  "target_product" text NOT NULL,
+  "target_schema_major" integer NOT NULL,
+  "target_max_chunk_bytes" integer NOT NULL,
+  "pending_state" text,
+  "pending_code_verifier" text,
+  "pending_redirect_uri" text,
+  "pending_token_url" text,
+  "last_run_id" uuid,
+  "created_at" timestamp with time zone DEFAULT now() NOT NULL,
+  "updated_at" timestamp with time zone DEFAULT now() NOT NULL
+);--> statement-breakpoint
+CREATE TABLE IF NOT EXISTS "cloud_upstream_runs" (
+  "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+  "connection_id" uuid NOT NULL,
+  "company_id" uuid NOT NULL,
+  "remote_run_id" text,
+  "status" text NOT NULL,
+  "active_step" text NOT NULL,
+  "progress_percent" integer DEFAULT 0 NOT NULL,
+  "dry_run" boolean DEFAULT false NOT NULL,
+  "retry_of_run_id" uuid,
+  "summary" jsonb DEFAULT '[]'::jsonb NOT NULL,
+  "warnings" jsonb DEFAULT '[]'::jsonb NOT NULL,
+  "conflicts" jsonb DEFAULT '[]'::jsonb NOT NULL,
+  "events" jsonb DEFAULT '[]'::jsonb NOT NULL,
+  "report" jsonb DEFAULT '{}'::jsonb NOT NULL,
+  "idempotency_key" text NOT NULL,
+  "manifest_hash" text NOT NULL,
+  "target_url" text,
+  "created_at" timestamp with time zone DEFAULT now() NOT NULL,
+  "updated_at" timestamp with time zone DEFAULT now() NOT NULL,
+  "completed_at" timestamp with time zone
+);--> statement-breakpoint
+DO $$ BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'cloud_upstream_connections_company_id_companies_id_fk') THEN
+    ALTER TABLE "cloud_upstream_connections" ADD CONSTRAINT "cloud_upstream_connections_company_id_companies_id_fk" FOREIGN KEY ("company_id") REFERENCES "public"."companies"("id") ON DELETE cascade ON UPDATE no action;
+  END IF;
+END $$;--> statement-breakpoint
+DO $$ BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'cloud_upstream_runs_connection_id_cloud_upstream_connections_id_fk') THEN
+    ALTER TABLE "cloud_upstream_runs" ADD CONSTRAINT "cloud_upstream_runs_connection_id_cloud_upstream_connections_id_fk" FOREIGN KEY ("connection_id") REFERENCES "public"."cloud_upstream_connections"("id") ON DELETE cascade ON UPDATE no action;
+  END IF;
+END $$;--> statement-breakpoint
+DO $$ BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'cloud_upstream_runs_company_id_companies_id_fk') THEN
+    ALTER TABLE "cloud_upstream_runs" ADD CONSTRAINT "cloud_upstream_runs_company_id_companies_id_fk" FOREIGN KEY ("company_id") REFERENCES "public"."companies"("id") ON DELETE cascade ON UPDATE no action;
+  END IF;
+END $$;--> statement-breakpoint
+CREATE INDEX IF NOT EXISTS "cloud_upstream_connections_company_idx" ON "cloud_upstream_connections" USING btree ("company_id");--> statement-breakpoint
+CREATE INDEX IF NOT EXISTS "cloud_upstream_runs_company_created_idx" ON "cloud_upstream_runs" USING btree ("company_id","created_at");--> statement-breakpoint
+CREATE INDEX IF NOT EXISTS "cloud_upstream_runs_connection_idx" ON "cloud_upstream_runs" USING btree ("connection_id");

packages/db/src/migrations/meta/_journal.json

@@ -624,6 +624,13 @@
       "when": 1779446400000,
       "tag": "0088_backfill_principal_access_compatibility",
       "breakpoints": true
+    },
+    {
+      "idx": 89,
+      "version": "7",
+      "when": 1779129600000,
+      "tag": "0089_cloud_upstreams",
+      "breakpoints": true
     }
   ]
 }