feat(v3.4): Add relations from GIFT v3.2 publications

[gift-framework]

New formalized relations from the GIFT v3.2 publication markdown files:

Weyl Triple Identity (S1 Section 2.3)

Three independent derivations of Weyl = 5:

• (dim(G₂) + 1)/N_gen = 15/3 = 5
• b₂/N_gen - p₂ = 21/3 - 2 = 5
• dim(G₂) - rank(E₈) - 1 = 14 - 8 - 1 = 5

PSL(2,7) = 168 (S1 Section 0.4)

Fano plane symmetry group with triple derivation:

• (b₃ + dim_G₂) + b₃ = 91 + 77 = 168
• rank(E₈) × b₂ = 8 × 21 = 168
• N_gen × fund(E7) = 3 × 56 = 168

TCS Building Blocks (S1 Section 8)

Now derives BOTH Betti numbers from specific building blocks:

• M₁ (Quintic in CP⁴): b₂=11, b₃=40
• M₂ (CI(2,2,2) in CP⁶): b₂=10, b₃=37
• b₂ = 11 + 10 = 21 (derived!)
• b₃ = 40 + 37 = 77 (derived!)

Certificate v3.4

• New theorem: gift_v34_publications_certificate
• Connects Weyl triple, PSL(2,7), TCS derivation
• Total: 180+ certified relations

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Note

Introduces complete TCS building block formalization and new structural identities, then wires them into the main certificate and docs.

• Foundations/TCS: adds ACyl_CY3 with b2/b3; defines M1_quintic (11,40) and M2_CI (10,37); derives TCS_b2, TCS_b3; proves K7_b2=21, K7_b3=77, TCS_derives_both_betti, TCS_master_derivation; exports updated in Foundations.lean
• Structural: adds weyl_triple_identity and PSL27_triple_derivation (multiple paths to Weyl=5 and |PSL(2,7)|=168)
• Certificate: adds abbrevs for new results and gift_v34_publications_certificate; updates relation count (180+)
• Docs: updates README.md, docs/USAGE.md; adds CHANGELOG.md entry; bumps gift_core/_version.py to 3.2.0

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