GHSA-f38v-77qj-h4jq: praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (default-open production guard)

- Affected: praisonai-platform (PyPI) <= 0.1.4 — including 0.1.4, the version GHSA-3qg8-5g3r-79v5 declares as the patch; main HEAD 8acf77c531e624c46d3d61dcae37e9942e90972c is also affected. File src/praisonai-platform/praisonai_platform/services/auth_service.py - CWE: CWE-1188 (Insecure Default Initialization) + CWE-798 (Use of Hard-coded Credentials) -> CWE-287 (Improper Authentication) Overview GHSA-3qg8-5g3r-79v5 (Critical) reported that praisonai-platform's JWT signing secret defaulted to the hardcoded literal "dev-secret-change-me", and that the production guard meant to prevent this was default-open (it only fired when PLATFORM_ENV != "dev", but PLATFORM_ENV defaults to "dev"). That advisory declares the issue patched in >= 0.1.4. It is not. The shipped praisonai-platform==0.1.4 (and current main) still resolves the signing key to "dev-secret-change-me" in any deployment that does not explicitly set PLATFORM_JWT_SECRET, because the 0.1.4 change merely duplicated the same default-open guard into a second function instead of failing closed. An unauthenticated attacker reads the literal from the public source, forges a JWT with an arbitrary sub, and is authenticated as that user — including a workspace owner. Impact Any deployment that runs praisonai-platform 0.1.4 without explicitly exporting a strong PLATFORM_JWT_SECRET signs and verifies session JWTs with the publicly known key "dev-secret-change-me". The package's documented entry point — python -m praisonai_platform --host 0.0.0.0 --port 8000 (equivalently uvicorn praisonai_platform.api.app:app --host 0.0.0.0) — sets neither PLATFORM_JWT_SECRET nor PLATFORM_ENV, so this is the default state, not an edge case. A repository-wide search finds both variables only at the two guard sites and in test fixtures; no shipped Dockerfile, compose file, or deployment doc sets either. Consequences: - Complete authentication bypass (unauthenticated). Knowing only the public default secret read from source, an attacke