Add FDC3 v3 Sail demo state

[DovOps]

Summary

Adds the state 014 FDC3 v3 + Sail demo path for TraderX, based on @finos/fdc3@3.0.0-alpha.2 and the Sail v3 beta line.

This updates the state 014 specs, generation flow, runtime scripts, and smoke tests so TraderX can run as a Sail-hosted FDC3 v3 demo with:

• TraderX-owned AppD endpoint at /fdc3/appd/v2/apps
• TraderX, Mini TraderX, and TraderX Intent Launcher supplied by TraderX AppD metadata
• compact Mini TraderX view that listens for instrument/account context and does not advertise trade/order-ticket handlers
• Sail bootstrap wired for multiple AppD sources, seeded workspace expectations, and FDC3 v3 broadcast validation
• FDC3 toolbox TradingView/Pricer apps supplied by @finos/fdc3-example-apps@3.0.0-alpha.2 instead of TraderX-local Sail widget ports
• Playwright smoke coverage for Sail workspace load, TradingView panels, fdc3.instrument, and traderx.account context propagation

The local Sail override widget copies were removed from this state. The corresponding upstream Sail work is tracked separately so TraderX can converge on upstream Sail behavior instead of carrying patched Sail app/widget code inside the state pack.

Generator Cleanup Split

The state004 generator overlay cleanup is now split into #433. PR #432 may show the same specs/004-containerized-compose-runtime/generation/patches/0001-state-overlay.patch final file until #433 lands, but reviewers should treat that generator hygiene change as owned by #433. Merge #433 first, then #432 can be rebased/updated normally with the demo-focused diff.

Sail Dependency Note

State 014 is currently pinned to a temporary Sail fork branch for the demo:

• https://github.com/DovOps/FDC3-Sail.git
• branch codex/state014-demo-runtime
• commit 3c1d756eab2692325a0bfd28e665af393aeead29

That branch is sail-v3-beta plus the two Sail improvements this demo still needs:

• Fix workspace store persistence rehydration FDC3-Sail#314 - workspace persistence/rehydration
• Support multiple App Directory sources FDC3-Sail#315 - multiple App Directory sources

The prior TradingView widget PR is no longer a dependency. TradingView/Pricer now come from the canonical FDC3 toolbox examples, which aligns with finos/FDC3-Sail#327. Once #314 and #315 land upstream, state 014 should be able to move back to the upstream Sail branch/ref.

Related Tracking

• TraderX issue: Hack Day: FDC3 Version 3 Update #431
• Sail implementers feedback: Workspace persistence serializes Maps as empty objects and lacks a supported default workspace profile hook FDC3-Sail#313
• Sail example-app strategy: Reintroduce FDC3 example apps to Sail (npm package vs hosted AppD) FDC3-Sail#327
• FDC3 implementers feedback: FDC3 v3 alpha web implementer feedback: route-scoped identity, context-only apps, and custom context guidance FDC3#1943
• TraderX upstream follow-ups: specs/014-fdc3-intent-interoperability/system/upstream-followups.md

Validation

• bash -n pipeline/render-state-014-fdc3-intent-interoperability.sh scripts/test-state-014-fdc3-intent-interoperability.sh scripts/start-state-014-fdc3-intent-interoperability-generated.sh scripts/status-state-014-fdc3-intent-interoperability-generated.sh
• bash -n generated/code/target-generated/fdc3-intent-interoperability/sail/bootstrap/run-sail.sh generated/code/target-generated/fdc3-intent-interoperability/sail/bootstrap/apply-sail-demo-compat.sh generated/code/target-generated/fdc3-intent-interoperability/sail/bootstrap/merge-traderx-appd.sh
• bash pipeline/render-state-014-fdc3-intent-interoperability.sh
• tools/validate-frontmatter.sh
• bash pipeline/speckit/validate-root-spec-kit-gates.sh
• bash pipeline/speckit/validate-speckit-readiness.sh
• bash pipeline/verify-spec-coverage.sh

Sail combined branch validation:

• npm run test:run -w @finos/sail-web -- workspace-store
• npm run test:run -w @finos/sail-web -- app-directory
• npm run typecheck -w @finos/sail-web

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