fix(photon): preserve text in mixed iMessage attachments (salvage #46513) (#46818)

* fix(photon): preserve text in mixed iMessage attachments

When an iMessage bubble carried both text and an attachment, spectrum-ts'
inbound mapper returned only buildAttachmentMessage(...), dropping the user's
typed text before Hermes could see it. The Photon adapter then had no 'group'
content path, so the text was lost entirely.

- adapter.py: handle a new 'group' content type that flattens text + attachment
  items, preserving the typed text alongside cached media (extracted shared
  _normalize_binary_payload helper).
- sidecar: emit 'group' content in normalizeContent, and ship
  patch-spectrum-mixed-attachments.mjs which patches spectrum-ts' pinned mapper
  (at npm postinstall AND at sidecar startup, so existing installs self-heal).

Windows robustness fixes on top of the original PR:
- The patcher's CLI guard used 'import.meta.url === file://${argv[1]}', which
  never matches on Windows (file:/// + drive letter) — it silently no-opped.
  Switched to pathToFileURL(argv[1]).href.
- The patcher matched \n-joined strings, so a CRLF checkout (Windows git
  autocrlf) defeated every replacement. It now normalizes CRLF->LF for matching
  and restores the original EOL style on write.

Co-authored-by: Yuhang Lin <yuhanglin@YuhangdeMac-mini.local>

* chore: map YuhangLin contributor email for attribution (#46513)

---------

Co-authored-by: Yuhang Lin <yuhanglin@YuhangdeMac-mini.local>
Co-authored-by: Teknium <127238744+teknium1@users.noreply.github.com>

scripts/release.py

@@ -45,6 +45,7 @@ ACP_REGISTRY_MANIFEST = REPO_ROOT / "acp_registry" / "agent.json"
 
 # Auto-extracted from noreply emails + manual overrides
 AUTHOR_MAP = {
+    "yuhanglin@YuhangdeMac-mini.local": "1960697431",
     "despitemeguru@gmail.com": "definitelynotguru",
     "chaslui@outlook.com": "ChasLui",
     "rio.jeong@thebytesize.ai": "rio-jeong",