feat: correlation ID middleware, share price chart, manifest generator, and wave contributor docs

[Akanimoh12]

Summary

This PR addresses four issues from the Stellar Wave contributor program:

• Create Backend Request Correlation ID Middleware #611 — Backend request correlation ID middleware: reads X-Correlation-Id from incoming requests, generates a UUID when absent, and echoes both the correlation ID and a fresh per-hop request ID in response headers and structured logs.
• Document How to Claim and Close Wave Issues #559 — Wave contributor documentation: new section in docs/contributor-guide.md covering issue claiming via comment template, branch/PR naming conventions, closing-keyword format, review expectations, and Drips points handling.
• Create Historical Share Price Chart #545 — Historical share price chart: GET /api/vaults/:vaultId/share-price-history backend route (with deterministic fixture fallback when no DB is available) and a SharePriceChart React component with 1M/3M/All range selectors, loading/empty/error/retry states, and a period delta summary line.
• Add Contract Deployment Manifest Generator #549 — Contract deployment manifest generator: contracts/scripts/generate-manifest.js script that produces a JSON manifest (contract IDs, network, commit SHA, timestamp) after each deployment run, with contract ID validation, registry cross-reference warnings, a sample fixture, and updated scripts/README.md with a post-deployment workflow.

Changes by area

Backend (server/)

• server/src/middleware/correlationId.ts — new correlationIdMiddleware; exports getCorrelationId and getRequestId helpers
• server/src/middleware/requestLogger.ts — updated to log correlationId alongside requestId
• server/src/routes/sharePriceHistory.ts — new GET /api/vaults/:vaultId/share-price-history route
• server/src/app.ts — registers both new middleware and route
• server/src/__tests__/correlationId.test.ts — 8 tests covering propagation, generation, validation, and header echo
• server/src/__tests__/sharePriceHistory.test.ts — 7 tests covering fixture fallback, shape, pagination, and invalid param handling

Frontend (client/)

• client/src/components/charts/SharePriceChart.tsx — chart component following the same pattern as ApyHistoryChart
• client/src/components/charts/__tests__/SharePriceChart.test.tsx — 7 tests covering loading, success, empty, error/retry, invalid-row handling, and range buttons

Contracts (contracts/)

• contracts/scripts/generate-manifest.js — manifest generator script
• contracts/scripts/deployment-manifest.example.json — sample output fixture
• contracts/scripts/README.md — documents manifest generator usage and post-deployment workflow
• contracts/__tests__/generateManifest.test.ts — 7 tests covering valid manifest generation, invalid network, malformed IDs, missing input, empty IDs, all three networks, and timestamp format

Docs (docs/)

• docs/contributor-guide.md — new "Stellar Wave" section (issue claiming, branch naming, PR linking, review expectations, Drips points)

Type of Change

• New feature (non-breaking change which adds functionality)
• Documentation update

Verification Commands

• npm run lint / npm run test (Frontend/Backend)
• cargo fmt / cargo clippy / cargo test (Smart Contracts)

UI Snapshot Checklist

• No visual changes to existing components — SharePriceChart is a new component added for use in vault detail views

Closes

Closes #611
Closes #559
Closes #545
Closes #549

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[drips-wave]

@Akanimoh12 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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