FiberQ v1.2.3 — repository scan clean (no functional change)

FiberQ v1.2.3

Code hygiene release — no functional change. This version passes the QGIS
plugin repository Security & Quality scan with a 100% pass rate (Bandit,
Secrets Detection, Flake8, and Suspicious Files all report 0 issues).

What changed

• Removed unused exception variables (except … as e where e was never used) — handlers still catch the same exceptions.
• Normalized whitespace around operators, continuation-line indentation, and split a few compound statements (autopep8).
• Removed a duplicate internal import in utils/__init__.py (kept the definitions already active at runtime).
• Annotated intentional multi-line conditions and conditional imports with targeted # noqa instead of rewriting working code.
• Packaging: the development flake8 config is no longer shipped inside the plugin.

Compatibility

• Existing FiberQ projects (v1.0–v1.2) are unaffected — no layer names, fields, project keys, styles, or data formats changed.
• QGIS 3.22 LTR → 4.x (Qt5 and Qt6), unchanged from v1.2.1.

Verification

• flake8 (repo scanner config): 528 → 0 · Bandit medium/high: 0 · byte-compile: OK
• QGIS load test: plugin loads and the full toolbar (62 actions) builds correctly.

Full changelog: see fiberq/metadata.txt.