1.1.10 - Batch terrain clearance, USA data like Velorona Map,
selection fixes, safer CSV exports

NEW
- Terrain clearance for many links. Processing Toolbox > Velorona >
"Terrain clearance for many Fixed Service links", or Plugins >
Velorona > Analyze: Terrain Clearance for Many Links (batch). Runs the
same analysis as a single link for every link of a layer or for the
selected links, one row per link with its status (CLEAR, WATCH, AT
RISK, CRITICAL, NO DATA) and the reason, and the same Observed/Assumed
typing of frequency and antenna heights. A link that cannot be
analysed is NO DATA with its reason and never stops the others. Runs
in the background with progress and Cancel (links not reached are
listed as NOT RUN). Up to 100 links per run by default (1,000
maximum), optional pause between links, optional fallback frequency
for records without one (typed Assumed), optional CSV. Terrain
clearance only (no weather or satellite batch). The elevation service
limits how fast links can be analysed: if it answers "too many
requests" those links are reported as NO DATA to retry; use a pause of
several seconds for more than a handful of links.
- USA data now works like Velorona Map, with no setup. After Explore >
Load Public Data, zoom to the United States: zoomed out you see pale
count bubbles (an overview, not individual records, not selectable);
zoomed in to a state-sized area the USA links and sites load by
themselves, with Canada-style clusters, and follow you as you pan.
Only the area you view is downloaded from Velorona's online USA data
(internet required; one message tells you). Choose another source or
turn it off in Explore > USA Data Setup. Very large views keep the
overview; zoom in for records (limit about 36 map tiles or 20,000
links per view). An explicit Load USA Links in View now also shows the
USA links in Records.

FIXED
- A selected record could stay selected, or be shown in the details
panel, against a different record after a layer reloaded. Selection is
now kept only for the same, unchanged record and cleared otherwise.
- Selection did not respond for Velorona layers already in the project
after the plugin was reloaded, and could answer twice; it now answers
once per layer, also for layers added later.
- Removing a Velorona layer no longer breaks the Records picker.
- A Records row no longer stays highlighted when the map selection
moved to a record hidden by the search; switching dataset shows that
layer's own selection; the Records dataset and the QGIS active layer
follow each other without selecting anything.

SAFER EXPORTS
- Text in CSV exports (names, identifiers, licensees, source and
reason text) that begins with = + - or @ is now marked as text so
Excel and Numbers do not run it as a formula. Calculated numbers,
including negative values, are unchanged. The mark is a leading
apostrophe, visible in a CSV. The Excel (.xlsx) export keeps the
original text, stored as plain text.

CLEARER
- Terrain Details and the Excel summary now say where antenna heights
and the frequency came from (the record's own value is Observed; a
default or something you changed is Assumed), as the Evidence view and
exports already did.
- The optional imagery group is named "USA Aerial Imagery & Topo
(USGS)" (off by default; projects saved with the old name are
renamed). The plugin description no longer mentions a GeoJSON export
(CSV and Excel). The Operator filter is stated to cover the Canadian
layers.

NOT CHANGED
- Terrain clearance and weather calculations, thresholds, statuses,
the Canada data and the satellite engine are unchanged (no change to
those parts of the code since 1.1.9).

REQUIREMENTS AND LIMITS
- QGIS 4.0-4.99; aei-link-clearance 0.2.x, aei-microwave-link-exposure
0.2.x, aei-geo-features and skyfield must be installed in QGIS's own
Python (see README).
- USA data and the other live sources need internet access.
- Satellite live-data behaviour could not be re-tested for this
release (the orbital data service was unreachable); it is unchanged
from 1.1.9.

Earlier versions: see CHANGELOG.md in the repository
(https://github.com/AIDEdgeInc-Lab/velorona-qgis-plugin/blob/main/CHANGELOG.md).

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