Reworks the GitHub changelog cache to fetch only new commits via ETag revalidation instead of re-downloading the full window on every cache expiry, and raises the commit limit ceiling from 500 to 2000.

Core changes:

1. Incremental GitHub fetch (modules/changelog/common.php):
2. Add chlogReadCache() returning cached data ignoring TTL, so a stale cache can be revalidated instead of discarded

3. chlogGhFetch() now revalidates with If-None-Match and walks pages only until a known commit SHA, prepending new commits

   • 304 Not Modified returns the cache and refreshes TTL at zero cost
   • full rebuild only on empty cache or filtered queries
4. Split HTTP into chlogGhUrl/chlogGhRequest/chlogGhResult; store page-1 ETag in cache meta
5. Derive page count from the requested limit (ceil(limit/100)) so the configured value is actually reachable
6. Commit limit ceiling (modules/changelog/common.php, admin/index.php):
7. Introduce CHLOG_MAX_LIMIT = 2000 and replace the hardcoded 500 clamps
8. Apply the constant to the config form max attribute and save clamp
9. Docs (modules/changelog/admin/info/ru.md):
10. Update pagination range to 10-2000

Benefits:

• Hourly refresh costs one conditional request (often 304) instead of a full multi-page re-download
• Repositories with up to 2000 commits load fully; the 500-commit cap is removed
• Shared HTTP layer is reusable and easier to maintain

Technical notes:

• Cache meta gains a page-1 ETag; old caches upgrade on first revalidation (no etag -> 200 -> etag stored)
• Sliding-window semantics preserved: newest kept, oldest trimmed at limit
• Incremental path applies to the unfiltered GitHub view; filtered/search and git mode are unchanged

Removes the explicit horizontal overflow behavior from the admin table shell. The table minimum width rule remains in place while the surrounding layout can control overflow naturally.

Core changes:

1. Admin theme stylesheet (templates/admin/assets/css/theme.css):

2. Removed the .sl-table-shell overflow rule

   • Drops forced horizontal scrolling on the shell
   • Keeps table min-width behavior unchanged

Benefits:

• Reduces redundant admin table styling
• Lets parent layouts control scrolling behavior
• Keeps the stylesheet slightly simpler

Technical notes:

• No template or JavaScript changes
• No runtime behavior changes outside CSS layout
• Backward compatibility depends on existing parent layout overflow handling

Adds admin-facing controls and documentation for the namespaced cache layout. The configuration screen can now report cache files by namespace and clear the full cache tree through an explicit action.

Core changes:

1. Cache configuration admin (admin/modules/config.php):

2. Added detailed cache directory counts and total size reporting

   • Skips protected .htaccess and index.html marker files
   • Shows namespace-level cache distribution

3. Added a CSRF-protected clear-cache action

   • Uses Cache::deleteAll() for full cache tree cleanup
   • Keeps the action visible only on the optimization tab
4. Scheduler and help text (config/scheduler.php, admin/info/.md, admin/lang/.php):
5. Registered a disabled Page cache cleanup system job
6. Updated cache labels and Russian help documentation for the new cache layout
7. Added translations for the clear-cache action
8. Admin tabs (templates/admin/assets/js/tabs.js):
9. Supports tab-scoped auxiliary action visibility
10. Keeps the cache clear button tied to the optimization tab

Benefits:

• Makes cache storage and cleanup visible from admin tools
• Enables scheduled cache cleanup without custom code
• Keeps destructive cache actions scoped and explicit

Technical notes:

• The scheduler job is disabled by default
• Protected marker files are not counted or deleted
• No database schema changes

Refactors the voting view renderer and keeps moderator actions separate from poll result items. This prevents the admin action menu from replacing the visible voting options or result rows.

Core changes:

1. Voting view renderer (core/system.php):

2. Simplified voting query and early-return flow

   • Keeps multilingual and forced-result behavior explicit
   • Preserves existing voting alerts and widget template usage

3. Separates poll item rendering from moderator action links

   • Avoids overwriting the rendered voting item list
   • Keeps result, vote, poll, and comment controls intact

Benefits:

• Restores visible voting results for moderator/admin views
• Improves maintainability of the voting renderer
• Reduces branching without changing the public widget contract

Technical notes:

• No database schema changes
• No template key changes
• Backward compatibility preserved for positional calls to getVotingView()

Render each recent error time in getDebugErrors() via date_create()->format(_TIMESTRING) instead of the raw stored string, so the debug panel shows dates in the configured system format and keeps the embedded timezone offset.

Core changes:

1. Debug error list (system.php):

2. Parse row time with date_create() and format with _TIMESTRING

   • Guard empty time values so no stray leading space is emitted
3. Keep channel, message and optional URL layout unchanged

Benefits:

• Consistent, localized timestamps in the performance/debug panel
• Avoids timezone shift from re-parsing with the server default

Technical notes:

• Presentation only, no storage/format change
• Backward compatible