fix(progress): count logs from disrupted trees

design/log.md

@@ -2,6 +2,14 @@
 
 ## 2026-08-11
 
+### US-001 disrupted-tree progress corrected
+
+- Reproduced remaining lower logs failing to count after an upper trunk block was removed because progression unnecessarily re-ran full intact-tree validation.
+- Progress now classifies unstripped natural `*_LOG`, crimson stem, and warped stem materials directly, so each qualifying block counts even after the tree structure is disrupted.
+- Wood, hyphae, stripped variants, and bamboo remain excluded; player-placed qualifying materials count because Spigot does not expose generation provenance.
+- Giant mushroom stems retain cap-based validation because their shared stem material cannot distinguish red from brown, while automatic felling still requires a validated intact tree and an axe.
+- Verified disrupted-tree progress, excluded processed materials, tool-independent progress, axe-only felling, and the complete build with `./gradlew clean check jar`.
+
 ### US-001 tool-independent progress corrected
 
 - Reproduced the progression gap caused by sharing the automatic-felling axe restriction with manual unlock progress.