Replace pChart charting library wich Chart.js

fix: group logging

fix: resolve search engine detection and naming issues in statistics plugin

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

test: Add comprehensive test suite for SearchEngines class

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

checked in some bits and bobs

more test fixing

fix: handle null values in Logger user agent detection

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

feat: implement `testLogIp` method with mocked HTTP client

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

test: skip geolocation IP lookup test with mock data

test: fix test failures in statistics plugin logger tests

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

refactor: update LoggerTest with configuration and minor fixes

feat: Add comprehensive tests for Logger class in statistics plugin

Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>

test: add LoggerTest.php for logging functionality testing

some javascript cleanup

more work on time handling

more query cleanup

some work on the queries

move query to new namespace

check for status in geolocation api

refactor: use SQLite plugin and parameterized queries in loghistory method

refactor: rename _act_clean method to actClean and adjust visibility

refactor: replace $_REQUEST and $_SERVER with global $INPUT object

refactor: simplify hook registration and add alt attribute to tracking image

basic logging works again

refactor: require referrer, replace analysis result with member variables