ci(storyboard): vendor AAO reference-formats fixture into @adcp/sdk install

Three of the four storyboard runners (seller_agent.py, sales-proposal-mode,
v3 reference seller (translator)) have been failing on main and on every
PR for the same upstream reason: ``@adcp/sdk@latest`` (which the storyboard
jobs install unpinned for drift-detection) does not ship
``aao-reference-formats.json`` in its npm tarball. Every step that
touches AAO format resolution rejects with:

    AAO catalog (reference-formats.json) not found. Looked in:
      .../node_modules/@adcp/sdk/test/lib/v2-projection-fixtures/aao-reference-formats.json
      .../node_modules/@adcp/sdk/.context/adcp-3307/server/src/creative-agent/reference-formats.json
    Vendor a copy at test/lib/v2-projection-fixtures/aao-reference-formats.json.

The SDK's error message itself recommends vendoring the file at the
expected path. Upstream tracking issue is adcp#3307.

Fix:
- Vendor the file at ``tests/fixtures/aao-reference-formats.json``
  (sourced from ``adcontextprotocol/adcp:server/src/creative-agent/reference-formats.json``,
  the canonical reference catalog the SDK is supposed to ship).
- Add three lines to each of the four storyboard jobs' ``Pre-install
  @adcp/sdk`` steps to drop the file into
  ``$(npm root -g)/@adcp/sdk/test/lib/v2-projection-fixtures/`` after
  the npm install. Idempotent — if upstream later ships the file the
  ``cp`` overwrites with the same bytes; if upstream moves it the
  overwrite is a safer floor than the missing-file failure.

The four storyboard jobs affected:
- AdCP storyboard runner — examples/seller_agent.py
- AdCP storyboard runner — examples/multi_platform_seller (PlatformRouter)
  (currently passing — doesn't exercise the AAO path — but covered for
  symmetry against future drift)
- AdCP storyboard runner — v3 reference seller (translator)
- AdCP storyboard runner — sales-proposal-mode (proposal_finalize)

The vendored file is 145 KiB JSON with 50 format entries. Not committed
to the package distribution (lives under ``tests/fixtures/``).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: bokelley

.github/workflows/ci.yml

@@ -391,9 +391,22 @@ jobs:
         # own CI running AdCP's own canonical runner — tracking latest
         # surfaces protocol drift as soon as it ships, which is the
         # point of this job.
+        #
+        # Vendor the AAO reference-formats fixture into the SDK install:
+        # ``@adcp/sdk`` does not ship ``aao-reference-formats.json`` in
+        # its npm tarball (upstream adcontextprotocol/adcp#3307), so the
+        # AAO catalog lookup fails for every storyboard step that touches
+        # creative-format resolution. The SDK's own error message
+        # recommends vendoring the file at this exact path. We keep a
+        # copy under ``tests/fixtures/`` and drop it into the SDK's
+        # expected location post-install; idempotent if upstream later
+        # ships it.
         run: |
           npm install -g @adcp/sdk@latest
           adcp --version
+          SDK_FIXTURE_DIR="$(npm root -g)/@adcp/sdk/test/lib/v2-projection-fixtures"
+          mkdir -p "${SDK_FIXTURE_DIR}"
+          cp tests/fixtures/aao-reference-formats.json "${SDK_FIXTURE_DIR}/aao-reference-formats.json"
 
       - name: Install dependencies
         run: |
@@ -548,9 +561,14 @@ jobs:
           pip install "sqlalchemy>=2.0" "asyncpg>=0.29" "respx>=0.20"
 
       - name: Pre-install @adcp/sdk (once, then call binary directly)
+        # See the comment on the storyboard job's install step for the
+        # AAO reference-formats fixture rationale (upstream adcp#3307).
         run: |
           npm install -g @adcp/sdk@latest
           adcp --version
+          SDK_FIXTURE_DIR="$(npm root -g)/@adcp/sdk/test/lib/v2-projection-fixtures"
+          mkdir -p "${SDK_FIXTURE_DIR}"
+          cp tests/fixtures/aao-reference-formats.json "${SDK_FIXTURE_DIR}/aao-reference-formats.json"
 
       - name: Start JS mock-server upstream
         run: |
@@ -757,9 +775,14 @@ jobs:
             ${{ runner.os }}-npm-
 
       - name: Pre-install @adcp/sdk
+        # See the comment on the storyboard job's install step for the
+        # AAO reference-formats fixture rationale (upstream adcp#3307).
         run: |
           npm install -g @adcp/sdk@latest
           adcp --version
+          SDK_FIXTURE_DIR="$(npm root -g)/@adcp/sdk/test/lib/v2-projection-fixtures"
+          mkdir -p "${SDK_FIXTURE_DIR}"
+          cp tests/fixtures/aao-reference-formats.json "${SDK_FIXTURE_DIR}/aao-reference-formats.json"
 
       - name: Install dependencies
         run: |
@@ -858,9 +881,14 @@ jobs:
             ${{ runner.os }}-npm-
 
       - name: Pre-install @adcp/sdk
+        # See the comment on the storyboard job's install step for the
+        # AAO reference-formats fixture rationale (upstream adcp#3307).
         run: |
           npm install -g @adcp/sdk@latest
           adcp --version
+          SDK_FIXTURE_DIR="$(npm root -g)/@adcp/sdk/test/lib/v2-projection-fixtures"
+          mkdir -p "${SDK_FIXTURE_DIR}"
+          cp tests/fixtures/aao-reference-formats.json "${SDK_FIXTURE_DIR}/aao-reference-formats.json"
 
       - name: Install dependencies
         run: |