fix(journey): swap skill/memory inks so drillable rows read as clickable

Memories are the only drillable rows, so give them the primary "clickable"
ink and demote skills (dead-ends) to the muted complement — previously the
non-openable skills wore the link-looking primary color. Flipped in both
the TUI and CLI palettes for parity.

agent/learning_graph_render.py

@@ -188,8 +188,10 @@ def derive_palette(primary_hex: str, *, dark: bool = True) -> dict[str, str]:
     bg = (8, 8, 12) if dark else (250, 250, 250)
     return {
         "primary": primary_hex,
-        "skill": rgb_to_hex(mix_rgb(primary, base, 0.12 if dark else 0.18)),
-        "memory": rgb_to_hex(mix_rgb(_complementary_ink(primary), bg, 0.45)),
+        # Memories are drillable → primary "clickable" ink; skills are dead-ends
+        # → muted complement.
+        "memory": rgb_to_hex(mix_rgb(primary, base, 0.12 if dark else 0.18)),
+        "skill": rgb_to_hex(mix_rgb(_complementary_ink(primary), bg, 0.45)),
         "label": rgb_to_hex(mix_rgb(base, bg, 0.35)),
         "dim": rgb_to_hex(mix_rgb(base, bg, 0.7)),
         "bg": rgb_to_hex(bg),

tests/agent/test_learning_graph_render.py

@@ -178,7 +178,7 @@ def test_format_date_handles_missing():
 def test_derive_palette_distinct_memory_hue():
     pal = render.derive_palette("#FFD700", dark=True)
     assert pal["skill"].startswith("#") and pal["memory"].startswith("#")
-    # Memory is a complement of the gold primary → clearly different ink.
+    # Skills wear the muted complement, memories the primary ink → distinct.
     assert pal["memory"].lower() != pal["skill"].lower()
 
 

ui-tui/src/lib/starmapPalette.ts

@@ -112,8 +112,10 @@ export function deriveStarmapPalette(primaryHex: string, fgHex: string): Starmap
     bg,
     dim: mix(base, bg, 0.7),
     label: mix(base, bg, 0.35),
-    memory: mix(complementaryInk(primary), bg, 0.45),
-    skill: mix(primary, base, dark ? 0.12 : 0.18)
+    // Memories are drillable, so they wear the primary "clickable" ink; skills
+    // are dead-ends and get the muted complement.
+    memory: mix(primary, base, dark ? 0.12 : 0.18),
+    skill: mix(complementaryInk(primary), bg, 0.45)
   }
 }