[Alexander-Mitrofanov]

Addresses the maintainer review on #287 by making the browser interface support both configurable IntaRNA prediction and IntaRNAeval structure evaluation, with vaRRI's institutional styling.

This PR depends on #287 and targets its feat/286-wasm-webinterface branch so the diff contains only the requested review revisions.

Changes

• Match vaRRI main-v2 colors/header with local copies of the official group and university logos.
• Add prediction/evaluation selection, signed per-strand start indices, multi-FASTA prediction, and mutually exclusive menus for every CLI parameter group. Defaults/ranges follow CommandLineParsing.cpp; evaluation retains energy/accessibility settings and excludes prediction constraints. Include energy parameter sets/temperature, strand accessibility/regions, seed/helix settings, SHAPE data, windows and overlap/output filters.
• Offer every native CSV column, native CSV sorting, independent table column visibility, and mfe Δ relative to each sequence pair's best reported interaction. Support native extra outputs, including probability CSV/SVG, plus ASCII/detailed/ensemble reports, with previews and complete downloads below the table.
• Record actual compiled IntaRNA/ViennaRNA/Boost versions, source revision, SDK and asset hashes in build-info.txt/JSON; display versions in the interface. Staging preserves compiled provenance and checks the paired assets.
• Annotate 194 inherited virtual methods and 45 derived destructors with override. These C++ edits only change declarations. Emscripten rejects inconsistent missing overrides; third-party headers remain unchanged.
• Expand protocol, real-engine and browser coverage; run native/WASM workflows for dependent PRs as well. Update README, ChangeLog and all four implementation documents.

Validation

• Emscripten 4.0.23 rebuild with the pinned official dependency archives: passed. An all-public-header audit with -Wsuggest-override -Wsuggest-destructor-override reports no missing overrides in IntaRNA headers.
• npm test --prefix webinterface: all 10 protocol/results/lifecycle groups passed.
• node scripts/wasm/smoke.mjs: original native-reference coordinates/energies, structured accessibility and C++ error handling passed.
• node scripts/wasm/smoke-protocol.mjs: real prediction/evaluation, signed coordinates, multi-FASTA/pairwise mode, all columns, imported accessibility, alternate energy/seed/helix/SHAPE settings and additional files passed.
• Real Chromium and Firefox integration suites on a nested URL: passed, including parameter groups/defaults, versions/logos, task switching, FASTA identity, signed coordinates, sorting/column selection, file previews/downloads, mobile overflow, cancellation and failure recovery. Desktop screenshot visually reviewed.
• Native OpenMP release build with GCC 16.2.0/ViennaRNA 2.7.2, make tests -j3: all eight groups passed, including 462,689 assertions across 119 API cases. Tracked fixtures were linked into the separate build directory for the existing shell harness.
• Provenance preservation and rejection of a deliberately mismatched engine asset: passed. Shell/Python syntax, workflow YAML and git diff --check: passed.

Browser scope

Up to 20 FASTA records per strand in prediction; evaluation accepts one query/target and up to 100 supplied structures. Records are 2–2,000 nt, with additional seed-length checks; selected sequence-pair length products total at most 1,000,000. Output count is 0–100 per pair, defaulting to the CLI's one. ASCII/detailed/ensemble reports each run a fresh engine instance, adding computation time. Local text inputs replace SHAPE/accessibility file paths; process-level options remain in the CLI. The base-pair maximization energy model is omitted as requested. Details and reproducible checks are in webinterface/docs/.