fix(whatsapp): resolve bridge dir with HERMES_HOME mirror (fix #49561)

[xydigit-zt]

Add shared helper resolve_whatsapp_bridge_dir() in whatsapp_common.py that:

• Checks if install dir is writable
• Mirrors bridge source to writable HERMES_HOME location if read-only
• Returns the resolved path for both CLI installer and runtime adapter

Wire into:

• hermes_cli/main.py (CLI installer - where EACCES actually fires)
• gateway/platforms/whatsapp.py (runtime adapter)

This ensures npm install works in Docker where /opt/hermes is read-only.

Testing:

• whatsapp_stale_bridge tests: 11 passed

Fixes #49561

[xydigit-zt]

Thanks for the review! I've updated the PR with a shared helper:

Changes:

1. Added resolve_whatsapp_bridge_dir() in whatsapp_common.py that checks if install dir is writable and mirrors to HERMES_HOME if needed
2. Wired into both CLI installer (hermes_cli/main.py) and runtime adapter (whatsapp.py) - covering both the actual failure site and runtime

This should now properly fix the EACCES error in Docker deployments.

[alt-glitch]

Duplicate of #49599 — both add a resolve_whatsapp_bridge_dir() helper in whatsapp_common.py that mirrors the Baileys bridge to a writable HERMES_HOME location on read-only installs, wired into both the CLI installer (hermes_cli/main.py) and the gateway adapter (gateway/platforms/whatsapp.py). Identical mechanism, same files, same Fixes #49561. #49599 was opened first (earlier createdAt), so it is the canonical version. (#49584 is the closed narrower adapter-only competitor.)

[alaamohanad169-ship-it]

Note: This is NOT a duplicate of the prior closed PRs (#49599, #49561, #49599, #49584). The earlier PRs were closed because they were stale (far behind upstream main). This version has been cherry-picked onto the latest origin/main with a clean diff containing only the fix changes. No conflicts. CI green. Ready for review.

[teknium1]

Merged via #49839 (commit 491579f) — your fix was cherry-picked onto current main with your authorship preserved in git history.

Since your PR was authored, the WhatsApp adapter had moved from gateway/platforms/whatsapp.py to plugins/platforms/whatsapp/adapter.py, so the adapter hunk was re-applied to the new location; the whatsapp_common.py helper and the hermes whatsapp CLI change landed as you wrote them. We added unit tests for the read-only mirror path on top. Thanks for the fix!