优化skill，添加特征树、编辑窗口

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+# Pattern Holes From Datum Atomic Skill
+
+## When to use
+
+- A model has repeated holes or repeated cut features that should be controlled by pitch, angle, symmetry, or a construction datum.
+- The design intent is a hole row, hole grid, mirrored pair, circular bolt circle, or repeated mounting pattern.
+
+## Do not use when
+
+- There is only one custom non-repeated hole.
+- Holes are intentionally irregular or individually dimensioned.
+- The feature is decorative and not constrained by functional layout.
+
+## Recognition features
+
+- Multiple holes with equal spacing, equal angular spacing, or mirrored positions.
+- SolidWorks evidence such as LinearPattern, CircularPattern, MirrorPattern, or repeated HoleWzd features.
+- Datum clues such as centerlines, edge offsets, pitch dimensions, central axis, or symmetry planes.
+
+## Core invariants
+
+- Build one correct seed hole or seed cut feature first.
+- Constrain the seed from a datum: edge offset, centerline, pitch circle, or axis.
+- Pattern the feature/cut, not only sketch circles.
+- Choose pattern type from geometry: linear for rows/grids, circular for flange bolt circles, mirror for symmetric pairs.
+- Keep the pattern editable by count, pitch, angle, and axis rather than hard-coded coordinates.
+
+## Parameter roles
+
+- `seed_position` defines the first hole from the datum.
+- `pitch` defines linear spacing.
+- `count` defines number of repeated instances.
+- `pattern_direction` defines row/grid direction.
+- `pattern_axis` defines circular pattern axis.
+- `total_angle` is usually 360 degrees for full bolt circles.
+- `mirror_plane` defines symmetric duplication.
+
+## Construction sequence
+
+1. Define the datum: edge offset, centerline, symmetry plane, or central axis.
+2. Create and validate one seed hole or cut feature.
+3. Select linear, circular, or mirror pattern based on the part family and layout.
+4. Pattern the feature with explicit count and spacing/angle.
+5. Add shared counterbore/countersink/thread detail before patterning when all instances match.
+6. Verify clearance to edges, central bores, slots, and neighboring holes.
+
+## Common failures
+
+- Duplicating sketch circles without actual cuts.
+- Using linear pattern for a flange bolt circle.
+- Using circular pattern for rectangular plate holes.
+- Patterning counterbore circles without patterning the underlying through hole.
+- Missing the datum so later size changes break alignment.
+
+## Evidence summary
+
+- Current library evidence: 58 reviewed SCAD58 models with repeated hole patterns.
+- Latest run evidence: accepted insights for linear repeated holes, mirror symmetry, symmetric hole placement, circular bolt patterns, and datum-driven construction geometry.
+- Frequent operations in the latest run: HoleWzd, Cut, LinearPattern, MirrorPattern, CircularPattern.
+- Source: CAD-SkillX offline review of SCAD58 descriptions, STEP summaries, and SolidWorks feature evidence.
+
+## Retrieval metadata
+
+Triggers:
+- `hole pattern`
+- `pattern holes from datum`
+- `repeated holes`
+- `symmetric holes`
+
+Secondary triggers:
+- `linear pattern`
+- `circular pattern`
+- `mirror pattern`
+- `bolt holes`
+- `hole grid`
+
+Operation triggers:
+- `pattern cut feature`
+- `linear pattern`
+- `circular pattern`
+- `mirror`
+
+Exclusions:
+- `single custom hole`
+- `decorative circles`
+- `irregular holes`