ref: use @sentry/api client for requests (#226)

## Summary

Migrates the Sentry API client from hand-rolled `ky` HTTP calls with
Zod-validated responses to the
[`@sentry/api`](https://www.npmjs.com/package/@sentry/api) SDK package.
This gives us type-safe API calls generated from the OpenAPI spec, while
keeping raw requests for internal/undocumented endpoints.

This supersedes #164, which generated the client in-repo using
`@hey-api/openapi-ts`. Using the published `@sentry/api` package instead
avoids maintaining ~20k lines of generated code in the repo.

## What changed

### New: `src/lib/sentry-client.ts`
Request configuration layer for `@sentry/api` SDK functions. Provides:
- **Authenticated fetch** with Bearer token injection
- **Automatic retry** on transient errors (408, 429, 5xx) with
exponential backoff
- **401 token refresh** — force-refreshes OAuth token and retries once
- **Request timeout** via AbortController (30s)
- Per-region config via `getSdkConfig(regionUrl)`

### Rewritten: `src/lib/api-client.ts`
All API functions now use `@sentry/api` SDK functions where possible:

| Function | SDK function used |
|----------|------------------|
| `listOrganizationsInRegion` | `listYourOrganizations` |
| `getOrganization` | `retrieveAnOrganization` |
| `listProjects` | `listAnOrganization_sProjects` |
| `getProject` | `retrieveAProject` |
| `getProjectKeys` | `listAProject_sClientKeys` |
| `getIssueByShortId` | `resolveAShortId` |
| `getLatestEvent` | `retrieveAnIssueEvent` |
| `getEvent` | `retrieveAnEventForAProject` |
| `triggerRootCauseAnalysis` | `startSeerIssueFix` |
| `getAutofixState` | `retrieveSeerIssueFixState` |
| `listLogs` / `getLog` | `queryExploreEventsInTableFormat` |

Functions that use raw requests (no SDK equivalent):
- `getUserRegions` — `/users/me/regions/` (internal endpoint)
- `getCurrentUser` — `/users/me/` (internal endpoint)
- `findProjectByDsnKey` — `/projects/?query=dsn:...` (internal query
param)
- `listIssues` — SDK missing `limit`/`sort` params
- `getIssue` / `updateIssueStatus` — legacy `/issues/{id}/` endpoint (no
org slug needed)
- `getDetailedTrace` — `/organizations/{org}/trace/{traceId}/` (internal
endpoint)
- `triggerSolutionPlanning` — SDK doesn't support `run_id` + `step` body

### Refactored: `src/types/sentry.ts`
- SDK-backed types now derive from `@sentry/api` response types using
`Partial<SdkType> & RequiredCore`
- Keeps Zod schemas only for internal endpoints not covered by the SDK
(Region, User, Logs)
- Event entry types (exceptions, breadcrumbs, request, etc.) remain as
plain TypeScript interfaces

### Removed
- `ky` dependency (replaced by `@sentry/api` + native fetch)
- Most Zod schemas for SDK-covered types (Organization, Project, Issue,
Event, ProjectKey, etc.)
- `SentryOrganizationSchema` and other schema exports from
`types/index.ts`

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: MathurAditya724

bun.lock

@@ -27,6 +27,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.3.8",
+    "@sentry/api": "^0.1.0",
     "@sentry/bun": "10.38.0",
     "@sentry/esbuild-plugin": "^2.23.0",
     "@sentry/node": "10.38.0",
@@ -40,7 +41,6 @@
     "esbuild": "^0.25.0",
     "fast-check": "^4.5.3",
     "ignore": "^7.0.5",
-    "ky": "^1.14.2",
     "p-limit": "^7.2.0",
     "pretty-ms": "^9.3.0",
     "qrcode-terminal": "^0.12.0",