0.8.0-beta.2 — change history (stage C) + layout fixes

Pre-release: stage C of the UI polish spec — the vault's change history — plus layout fixes from beta.1 feedback. Settings migrate automatically. Install via BRAT (enable beta versions) or copy main.js / manifest.json / styles.css into .obsidian/plugins/graph-insight/.

Added

• "What changed?" panel (overflow menu / command palette): 7 or 30 days, six categories — new notes, edited notes, added links, removed links, growing hubs, cooling clusters. Note rows open the note, link rows focus both ends and light the edge up, clusters zoom to their members; the selected category highlights on the graph until an explicit reset.
• Topology history: a snapshot of paths, links, PageRank and clusters lands after a successful metrics run, at most once per day — ~2 months weekly + ~6 months monthly under a 64 MB cap. Corrupt history is quarantined, never deleted; the panel degrades gracefully while history accumulates; 10 000+ note graphs diff in a worker. "Reset all plugin data" clears the history, "reset settings" keeps it.
• Tasks… in the simple panel — the same canned use cases as the search-bar control.

Fixed

• Top controls no longer overlap: search and filters own the full top row, the focus/explore bar wraps under it, and the cursor toolbar docked bottom-left mirroring the camera widget.

Full changelog: https://github.com/n23eos/advanced_graph_view/blob/main/CHANGELOG.md