Lukas 57eacf39ba fix(security): Remove insecure session secret fallback in compose.debug.yml ...

TASK-027: The compose.debug.yml file had a publicly known weak session secret as
a fallback value. This has been replaced with an explicit requirement via the :?
bash parameter expansion pattern, forcing developers to set BANGUI_SESSION_SECRET.

Changes:
- Changed BANGUI_SESSION_SECRET fallback to use :? pattern with clear error message
- Created .env.example with placeholder values and generation instructions
- Added first-run setup instructions to Instructions.md
- Verified .env is already in .gitignore

The error message provides clear guidance:
'BANGUI_SESSION_SECRET must be set — generate with: python -c "import secrets; print(secrets.token_hex(32))"'

Severity: Medium
- Prevents exposure of session secret in repositories
- Ensures each environment has unique secrets
- Aligns with production compose.prod.yml which already uses this pattern

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2026-04-26 15:12:10 +02:00

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