Changelog

• Introduced base version with M1 (Sun, 10-100), M2 (Earth, 1-10), M3 (Moon, 0-1), M4 (Jupiter, 0-20), M1-M2 and M1-M4 Lagrangian points (L1-L5), rocket launch, zoom/pan, grid spacing 100.
• Removed M3 (Moon) and its Lagrangian points, retained M1 (10-100), M2 (1-10), M4 (0-20).
• Fixed M4 angle slider to initialize at 180°, ensured M4 angle wrapper visibility based on M4 mass.
• Updated mass ranges: M1 (100-1000), M2 (1-10), M4 (0-100), set dot size to 5 * mass^(1/3), increased canvas extent margin to 2.5 (v6.4).
• Increased dot sizes to 7 * mass^(1/3), removed M1-M2 L3 and M1-M4 L3” points, introduced dynamic grid spacing (100 when M1 ≤ 200, 200 when M1 > 200) (v6.5).
• Adjusted sizes: M2 and M4 to 10 * (mass/1)^(1/3), M1 to 20 * (m1/100)^(1/3), added changelog section in HTML body (v6.6).
• Fixed M1 and M2 size changes with sliders, increased sizes: M1 to 50 * (m1/100)^(1/3), M2 to 50 * (m2/1)^(1/3), M4 to 50 * (m4/1)^(1/3), fixed M1 rendering when M4 added (v6.7).
• Adjusted sizes based on M1=1000, M2=10, M4=100: M1 to 75 * (m1/100)^(1/3), M2 to 25 * (m2/1)^(1/3), M4 to 25 * (m4/1)^(1/3), halving M2 and M4 sizes, increasing M1 by 1.5x (v6.8).
• Adjusted M1 size to 107.5 * (m1/100)^(1/3) to match M4=100 size (~107.5 pixels) at M1=100, M1=1000 size ~231.56 pixels (exceeds 1.25x previous 161.25) (v6.9).
• Reverted to v6.9, removed rocket launch details (v6.11).