fix(tsconfig): silence TS 7.0 baseUrl + rootDir deprecation warnings

[roiizchak]

Summary

TypeScript 7.0 deprecates the baseUrl compiler option unless ignoreDeprecations: "6.0" is set, and also flags tsconfigs whose computed common source directory differs from an explicit rootDir. Both conditions currently trigger warnings in packages/cli/tsconfig.json and packages/studio/tsconfig.json:

• packages/cli/tsconfig.json — baseUrl deprecation and "common source directory is '..'" because paths maps @hyperframes/producer to ../producer/src/index.ts, pulling the compiler's root above ./src.
• packages/studio/tsconfig.json — baseUrl deprecation only (rootDir is already "..").

The other six package tsconfigs (core, engine, player, player/tests/perf, producer, shader-transitions) set rootDir explicitly and don't use baseUrl, so they don't trip either warning.

Changes

packages/cli/tsconfig.json — add ignoreDeprecations: "6.0" and rootDir: ".." (matches studio's pattern; covers both cli/src and the resolved paths target under packages/):

     "moduleResolution": "bundler",
+    "ignoreDeprecations": "6.0",
     "baseUrl": ".",
     "paths": {
       "@hyperframes/producer": ["../producer/src/index.ts"]
     },
     ...
     "outDir": "./dist",
-    "declaration": true
+    "declaration": true,
+    "rootDir": ".."
   },

packages/studio/tsconfig.json — add ignoreDeprecations: "6.0" only:

     "moduleResolution": "bundler",
+    "ignoreDeprecations": "6.0",
     "baseUrl": ".",
     "paths": {
       "@hyperframes/player": ["../player/src/hyperframes-player.ts"]
     },

Rationale

• ignoreDeprecations: "6.0" is the canonical TypeScript escape valve suggested by the compiler itself in the deprecation message. It leaves baseUrl/paths behavior unchanged while silencing the warning until a future refactor is ready to drop paths in favor of bun workspace resolution.
• Setting rootDir: ".." on the CLI matches the existing pattern in packages/studio/tsconfig.json, and keeps the resolved @hyperframes/producer file under rootDir so no TS6059 is introduced.

Test plan

• bun install — clean.
• bun run build — builds successfully with no new errors.
• bunx oxlint packages/cli/tsconfig.json packages/studio/tsconfig.json — clean.
• bunx oxfmt --check packages/cli/tsconfig.json packages/studio/tsconfig.json — clean.
• Editor verification: both deprecation warnings disappear in VS Code / Cursor / any editor running TS ≥ 5.5 LS.

No runtime changes. No output layout changes (CLI's actual emit is already relative to ./src via include pattern; rootDir: ".." only affects how TS computes error paths and does not alter emitted file locations when combined with include: ["src"]).