chore(template): clean-slate template snapshot from bb4a0c7

Curated, product-agnostic snapshot of the post-story-04 tree: demo
content deleted, auth-only reference feature, web-next shell, all gates
green. Product-specific docs, ADRs 027-029, PRDs/epics/archive, editor
library traces, and product naming are curated out; generic template
repairs (coverage provider devDeps, root test:coverage script, live
lint fixes, root-only release-please) are kept. See TEMPLATE.md for
provenance, curation list, and usage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

scripts/coverage/__fixtures__/aggregate-pkg-a.lcov

@@ -0,0 +1,22 @@
+TN:
+SF:src/foo.ts
+DA:1,5
+DA:2,5
+DA:3,0
+LF:3
+LH:2
+BRF:2
+BRH:1
+FNF:1
+FNH:1
+end_of_record
+SF:src/bar.ts
+DA:1,10
+DA:2,10
+LF:2
+LH:2
+BRF:0
+BRH:0
+FNF:1
+FNH:1
+end_of_record

scripts/coverage/__fixtures__/aggregate-pkg-b.lcov

@@ -0,0 +1,13 @@
+TN:
+SF:src/baz.ts
+DA:1,3
+DA:2,3
+DA:3,3
+DA:4,0
+LF:4
+LH:3
+BRF:2
+BRH:2
+FNF:2
+FNH:1
+end_of_record

scripts/coverage/__fixtures__/sample-diff.patch

@@ -0,0 +1,49 @@
+diff --git a/packages/auth/src/application/use-cases/sign-in.use-case.ts b/packages/auth/src/application/use-cases/sign-in.use-case.ts
+index abc..def 100644
+--- a/packages/auth/src/application/use-cases/sign-in.use-case.ts
++++ b/packages/auth/src/application/use-cases/sign-in.use-case.ts
+@@ -1,0 +2,2 @@
++const a = 1;
++const b = 2;
+@@ -4,1 +5,2 @@
+-old
++const c = 3;
++const d = 4;
+diff --git a/packages/auth/src/application/use-cases/sign-in.use-case.test.ts b/packages/auth/src/application/use-cases/sign-in.use-case.test.ts
+index abc..def 100644
+--- a/packages/auth/src/application/use-cases/sign-in.use-case.test.ts
++++ b/packages/auth/src/application/use-cases/sign-in.use-case.test.ts
+@@ -10,0 +11 @@
++new test line
+diff --git a/packages/auth/src/entities/models/user.ts b/packages/auth/src/entities/models/user.ts
+index abc..def 100644
+--- a/packages/auth/src/entities/models/user.ts
++++ b/packages/auth/src/entities/models/user.ts
+@@ -2,1 +2,1 @@
+-old
++modified
+diff --git a/packages/blog/src/application/use-cases/get-article.use-case.ts b/packages/blog/src/application/use-cases/get-article.use-case.ts
+index abc..def 100644
+--- a/packages/blog/src/application/use-cases/get-article.use-case.ts
++++ b/packages/blog/src/application/use-cases/get-article.use-case.ts
+@@ -11,0 +12 @@
++const uncovered = true;
+diff --git a/packages/media/src/application/use-cases/upload.use-case.ts b/packages/media/src/application/use-cases/upload.use-case.ts
+new file mode 100644
+index 0000000..abc
+--- /dev/null
++++ b/packages/media/src/application/use-cases/upload.use-case.ts
+@@ -0,0 +1,5 @@
++export const uploadUseCase = () => {
++  return "uploaded";
++};
++// Line 4
++// Line 5
+diff --git a/CLAUDE.md b/CLAUDE.md
+index abc..def 100644
+--- a/CLAUDE.md
++++ b/CLAUDE.md
+@@ -1,1 +1,2 @@
+-old text
++new text
++more text

scripts/coverage/__fixtures__/sample.lcov

@@ -0,0 +1,25 @@
+TN:
+SF:/repo/packages/auth/src/application/use-cases/sign-in.use-case.ts
+DA:1,5
+DA:2,5
+DA:3,5
+DA:5,0
+DA:6,0
+DA:8,3
+LF:6
+LH:4
+end_of_record
+SF:/repo/packages/auth/src/entities/models/user.ts
+DA:1,1
+DA:2,1
+DA:3,1
+LF:3
+LH:3
+end_of_record
+SF:/repo/packages/blog/src/application/use-cases/get-article.use-case.ts
+DA:10,2
+DA:11,2
+DA:12,0
+LF:3
+LH:2
+end_of_record