Add TypeScript path aliases and strict mode across all packages

[Smartdevs17]

Description

Import paths use relative references causing maintenance issues. Configure path aliases and enable strict TypeScript mode.

Acceptance Criteria

• Path aliases (@/ for src root) in all TS packages
• strict: true in all tsconfig.json
• noImplicitAny and strictNullChecks enabled
• Type error fixes from strict mode
• ESLint rule for import path consistency
• CI check for strict mode compliance

Technical Scope

• api/tsconfig.json
• oracle/tsconfig.json
• Edge: path alias resolution in compiled output, IDE integration

[Sendi0011]

@Sendi0011 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Gm team, i will like to work on this, i am a frontend/smartcontract developer with experience skill solving issues like this. i am also an active Open source contributor.
ETA: 4 hours

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Sendi0011 to this issue.

[drips-wave]

Congratulations, @Sendi0011! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Sendi0011: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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