fix(playwright): isolate the generated child tsconfig's include/exclude

docs/branch-review-records/39296f14956e2712c76344bea1eb1d312c64370049420fc3dd6939b28780721b.record.md

@@ -0,0 +1 @@
+| 2026-08-14 | PR-1953 | 5f6ecbd554f91a692965f7f876807d4e9e9c2c26 | PR #1953 full review and required base sync | no PR-introduced P0-P2 defect; existing P2 verified-correct; merged latest main | manual adversarial review; current thread verification; git merge-tree; git diff --check; base-sync native ledger/docs checks; focused Playwright/Next build not run (node_modules absent) |

docs/branch-review-records/40b0c05db4e9b44c17bc78bb0246cd15d4f72e244027e5a389bee78924c450cf.record.md

@@ -0,0 +1 @@
+| 2026-08-14 | PR-1953 | 98b7458ba7ef4cecc5b5f5747deccf6adbab0480 | scripts/run-playwright.mjs; docs/branch-review-records | no PR-introduced P0-P2 defect; corrected prior local-only merge record and merged latest main | manual adversarial review; current thread verification; git merge-tree; git diff --check; docs links; ledger inbox; ledger guards; focused Playwright/Next build unavailable (node_modules absent) |

docs/branch-review-records/c9661626e5c2a0e5f848b375b83006a00452994ad503349944c2fb345c8b42a1.record.md

@@ -0,0 +1 @@
+| 2026-08-14 | claude/playwright-tsconfig-isolation | a5af47d083091a44cf515bed031d7cbd1bea3ea7 | scripts/run-playwright.mjs | FIXED - isolated child tsconfig given explicit include/exclude, empirically reproduced and verified | typecheck,verify:ui-focused-repro |

scripts/run-playwright.mjs

@@ -261,6 +261,33 @@ try {
           baseUrl: "../..",
           paths: { "@/*": ["src/*"] },
         },
+        // Declaring include/exclude here (rather than leaving them unset and
+        // inheriting the root tsconfig.json's) is deliberate. TypeScript resolves
+        // an extended config's *inherited* relative include/exclude entries
+        // against the repo root, so an unset include here would still resolve
+        // "**/*.ts" and ".next/dev/types/**/*.ts" against the shared top-level
+        // .next/ directory — not this isolated run's own NEXT_DIST_DIR output
+        // under `dist/`. That pulls stale/foreign route types from whatever the
+        // top-level .next happens to contain (a prior `npm run dev` or `npm run
+        // build`) into this run's typecheck. Excluding the repo-root .next/ and
+        // pointing at this run's own dist/types + dist/dev/types keeps the
+        // isolated build's typecheck scoped to itself (outstanding-issues #210).
+        include: [
+          "../../next-env.d.ts",
+          "../../**/*.ts",
+          "../../**/*.tsx",
+          "../../**/*.mts",
+          "dist/types/**/*.ts",
+          "dist/dev/types/**/*.ts",
+        ],
+        exclude: [
+          "../../node_modules",
+          "../../scratch/**",
+          "../../supabase/functions/**",
+          "../../worktrees/**",
+          "../../scripts/archive/**",
+          "../../.next/**",
+        ],
       },
       null,
       2,