Refresh docs and README for current product surface

[jschick04]

Summary

Refresh docs/ and README.md for the current product surface. The previous docs were last touched in June 2023; main has accumulated ~576 commits since, with a lot of new user-visible behavior the docs never covered.

This is a docs-only PR. No source, workflow, or test changes.

Docs restructure

Replaces the old 5-page tutorial-style set with a feature-reference set keyed off the actual product surface (menus / panes / modals).

New pages

• Home.md — TOC + product summary + supported-OS line.
• Opening-Logs.md — File menu (File / Folder / Live), drag-and-drop, command-line .evtx opens, combining logs, Continuously Update / Load New Events, status-bar tokens, Close All.
• Viewing-Events.md — Tab strip, virtualized event table (configurable columns + drag reorder + drag resize + sort + per-row highlighting), selection (Ctrl+A / Escape), Details pane, on-demand XML.
• Filtering.md — Filter pane: Basic (categories + evaluators + sub-filters with case-sensitivity caveats), Advanced (Dynamic LINQ with full filterable-property table from ResolvedEvent), Cached, Date, Exclusion semantics, highlighting.
• Saved-Filters.md — Filter cache (Favorites + Recent) and named filter groups; per-group and bulk import / export; Apply Filters add-and-dedupe semantics.
• Provider-Databases.md — Why DBs exist, resolution order (MTA → enabled DBs → local fallback), Settings lifecycle states, full eventdbtool subcommand reference (show / create / merge / diff / upgrade) with verbatim Description strings.
• Settings.md — Time Zone, Databases, Theme, Keyboard Copy Behavior, Logging Level, Pre-release Builds, Expand Display Pane on Selection Change.
• Keyboard-And-Copy.md — Edit-menu copy modes, how Keyboard Copy Behavior rebinds Ctrl+C, Ctrl+H toggle.
• Updates-And-Diagnostics.md — Help menu: Docs, Submit an Issue, Check for Updates, Release Notes, View Logs.

Removed (legacy 2023 pages, replaced)

• docs/FirstTimeSetup.md
• docs/ProviderDatabases.md
• docs/Viewing.md

README

• Key Features bullets rewritten to cover what's actually shipped (filter groups, filter cache, exclusion + sub-filters, configurable columns + highlighting, configurable Ctrl+C modes, themes, on-demand XML, in-app Release Notes + Debug Log viewer, opt-in pre-release update channel) alongside the originals.
• Quick Start is now .appinstaller-first.
• Microsoft.WindowsAppRuntime example bumped 1.2 → 1.7 (matches the current appxmanifest dependency).
• Sideloading paragraph dropped — sideloading is enabled by default on every supported OS.
• "Auto-updates do not work on 2019" note dropped.
• Supported OS narrowed to mainstream-supported: Windows 11, Windows Server 2022, Windows Server 2025. Drops Windows 10 (mainstream ended Oct 2025) and Windows Server 2019 (mainstream ended Jan 2024).
• Stale EventLogExpert_23.5.19.1256_x64.msix filename replaced with a <version> placeholder + a pointer to the latest release page.

Voice

Feature reference, not tutorial. Exact UI labels verbatim. No marketing voice. Why-only-when-non-obvious. One screenshot slot per page max (only EventLogExpert-CombinedView.png is wired up today; the rest are placeholders for follow-up).

Validation

• Every UI label cited cross-checked against source (MenuBar.razor.cs, SettingsModal.razor, FilterPane.razor.cs, Reducers.cs, Effects.cs, LogTablePane.razor.cs, FilterService.cs, ResolvedEvent.cs, EventResolver.cs, *Command.cs).
• Filterable-properties table in Filtering.md matches ResolvedEvent member-for-member with the Xml lazy-resolution caveat called out.
• eventdbtool reference quotes the verbatim Description strings from each subcommand's GetCommand().
• Markdown link sweep: every relative link in the new pages resolves.
• git diff origin/main..HEAD -- . is docs + README only.

Closes #441.

[Copilot]

Pull request overview

Refreshes the README and documentation set from older tutorial-style pages into a current feature-reference structure aligned to the app’s menus, panes, modals, and CLI tooling.

Changes:

• Replaces legacy docs with new topic pages for opening logs, viewing events, filters, settings, provider databases, keyboard/copy, and diagnostics.
• Updates README feature list, quick start, dependency version, and supported OS guidance.
• Removes obsolete setup/viewing/provider-database pages superseded by the new structure.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
README.md	Updates feature summary and install guidance.
docs/Home.md	Adds docs landing page and topic list.
docs/Opening-Logs.md	Documents file/folder/live log opening and live behavior.
docs/Viewing-Events.md	Documents tabs, event table, selection, and details pane.
docs/Filtering.md	Expands filter pane, basic/date/advanced/cache/exclusion/highlight docs.
docs/Saved-Filters.md	Documents filter cache and filter groups.
docs/Provider-Databases.md	Replaces provider database reference and eventdbtool docs.
docs/Settings.md	Documents settings modal options and database states.
docs/Keyboard-And-Copy.md	Documents copy formats and keyboard/menu navigation.
docs/Updates-And-Diagnostics.md	Documents Help menu update and diagnostics surfaces.
docs/FirstTimeSetup.md	Removes superseded legacy setup page.
docs/ProviderDatabases.md	Removes superseded legacy provider database page.
docs/Viewing.md	Removes superseded legacy viewing page.

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[Copilot]

Pull request overview

Copilot reviewed 13 out of 14 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 16 changed files in this pull request and generated 4 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 17 changed files in this pull request and generated 4 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 17 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 17 changed files in this pull request and generated no new comments.