feat: QuestieLearner comprehensive overhaul v1.2.6

- Full quest field capture (title, level, objectives, description, money, zone)
- Mouseover filter: only record NPCs with QUESTGIVER npcFlag (0x02) or known DB entries
- OnTargetChanged: cache GUID for kill tracking only, no more spurious LearnNPC calls
- Grid-bucket coordinate clustering (COORD_GRID=2.0) replaces naive radius dedup
- Object recording: detect GameObject loot, gossip, and quest giver/finisher
- Item loot: async GetItemInfo retry via GET_ITEM_INFO_RECEIVED event
- LearnQuestGiver: entityType parameter (1=NPC,2=obj,3=item) for correct wiki layout
- InjectLearnedData: uses grid clustering in all merge paths
- MergeImport: calls InjectLearnedData immediately after merge (live override injection)
- README: corrected import reload requirement description
- CHANGELOG + docs/changelog.html updated with developer detail

README.md

@@ -245,7 +245,7 @@ To load data exported by another player or provided by the community:
 
 1. Open Questie-X options → **Database** tab.
 2. Paste the export string into the import text box.
-3. Click **Import**. Questie-X decodes and merges the data into your local database immediately — no reload required.
+3. Click **Import**. Questie-X decodes and merges the data into your local database and immediately injects it into the active override tables — map pins and tracker entries update without a full reload. A `/reload` is only required if you want newly imported quest starters/finishers to appear on the world map for quests already in your log.
 
 Imported entries follow the same validation rules as received broadcast entries. Conflicts (same NPC ID with different coordinates) are resolved by keeping the entry with the most data fields populated.