Apply local fixes on top of upstream: tracker desync/drag/title, map icon zoom offset

- Compat/HBD.lua: fix world map pin offset math to account for zoom addons
  (e.g. Magnify) rescaling an ancestor frame instead of WorldMapButton itself;
  cull pins that fall outside the scroll frame's viewport when zoomed
- Compat/Compat.lua: add a short TTL to the chat-parsed objective progress
  cache so a stale entry can't be reapplied to an unrelated quest
- Modules/QuestieLearner.lua: re-point QuestiePlayer.currentQuestlog at the
  rebuilt quest table after invalidating QuestieDB's quest cache, fixing
  Tracker freezing on stale objective progress
- Modules/Tracker/QuestieTracker.lua: fall back to a formatted quest name
  when QuestieDB has no title for a quest (e.g. custom server quests)
- Modules/Tracker/TrackerBaseFrame.lua: force baseFrame movability on drag
  start instead of trusting the async-refreshed IsMovable() state
- Modules/Tracker/TrackerHeaderFrame.lua: wire up drag on the tracker icon
- Modules/Quest/QuestEventHandler.lua: force a full quest log reconciliation
  when the native quest log is opened

Squashed from prior commit-by-commit history to rebuild this working copy
on a clean fork of aron-w/Questie-X (restores the native GitHub fork link).
Per-fix rationale is preserved in project memory
(project_tracker_fixes.md, project_map_icon_offset.md).

Modules/Tracker/QuestieTracker.lua

@@ -1039,6 +1039,25 @@ function QuestieTracker:Update()
                                 (Questie.db.profile.collapseCompletedQuests and isMinimizable), false)
                         end
 
+                        if not coloredQuestName then
+                            -- QuestieDB has no "name" entry for this quest (e.g. a custom
+                            -- server quest not yet in the static DB), so GetColoredQuestName
+                            -- returned nil -- fall back instead of SetText(nil) blanking the
+                            -- title line while its objectives still render normally below it.
+                            -- Level/tag lookups don't require a DB "name" entry, so reuse the
+                            -- same formatting helper as the normal path to keep the "[level]"
+                            -- prefix consistent with quests that do have a DB name.
+                            local fallbackName = quest.name or tostring(quest.Id)
+                            if Questie.db.profile.trackerShowQuestLevel then
+                                local level = QuestieLib.GetTbcLevel(quest.Id)
+                                fallbackName = QuestieLib:GetQuestString(quest.Id, fallbackName, level, false)
+                            end
+                            if Questie.db.profile.enableTooltipsQuestID then
+                                fallbackName = fallbackName .. " (" .. quest.Id .. ")"
+                            end
+                            coloredQuestName = "|cFFFFFF00" .. fallbackName .. "|r"
+                        end
+
                         line.label:SetText(coloredQuestName)
 
                         -- Check and measure Quest Label text width and update tracker width