Replaces LICENSE (GPLv3 -> AGPLv3) and prepends
`SPDX-License-Identifier: AGPL-3.0-or-later` to every source file
across decnet/, decnet_web/, tests/, scripts/, and tools/.
Rationale: closes the GPLv3 ASP loophole so any party operating a
modified DECNET as a network service must offer their modified
source. Personal copyright (Samuel Paschuan) + inbound=outbound
contributions make a future unilateral relicense infeasible.
- LICENSE: full AGPL-3.0 text (gnu.org/licenses/agpl-3.0.txt)
- COPYRIGHT: project copyright notice
- tools/add_spdx_headers.py: idempotent header injector
(shebang- and PEP 263-aware)
Touches 1565 source files (.py, .ts, .tsx, .js, .jsx, .css, .sh).
No behavior change; comments only.
Registers a generic @app.exception_handler(Exception) that catches anything
uncaught in route handlers / dependencies. Prod response is opaque:
{detail: 'Internal Server Error', error_id: <uuid4 hex>}. Dev mode
(DECNET_DEVELOPER=True) adds exception_type and traceback fields so
failures are debuggable without tailing server logs.
The error_id is logged alongside the full traceback server-side, letting
operators correlate a user's 500 report with the exact exception via
`grep <error_id> /var/log/decnet.log`.
FastAPI's own HTTPException routing and the existing
RequestValidationError / ValidationError / RateLimitExceeded handlers
still take precedence — this handler only fires on genuinely-uncaught
exceptions.
Flips threat model F1/I 'traceback / stack trace leakage' from ? to M
and logs a follow-up checklist entry for 4 detail=str(e) sites in the
fleet deploy router (admin-gated, different threat class, separate
audit).
