feat: Bauer v2 — base branch

[canonical-muhammadbassiony]

Bauer v2 — Base Branch

This is the root of the Bauer v2 stacked PR series. It serves as the merge target for all subsequent feature branches.

What this PR contains

No code changes — this is a clean branch point from main that the rest of the v2 implementation stack builds on top of.

Stacked PR Series

This is a series of 12 stacked PRs implementing specs 001 (v2 Reconciliation) and 002 (Figma Integration). Each PR targets the previous branch for clean, incremental review.

Order	Branch	Phase
0	feature/bauer-v2 ← this PR	Base branch
1	feat/phase-0a-agent-source	001 Phase 0: Agent interface, source layer
2	feat/phase-0b-artifacts-config	001 Phase 0: Artifacts, config manager
3	feat/phase-1-cli-restore	001 Phase 1: CLI restoration
4	feat/phase-2-cli-features	001 Phase 2: --open-pr, --open-issue
5	feat/figma-phase-b-client	002 Phase B: Figma client
6	feat/figma-phase-c-mapping	002 Phase C: Design-to-text mapping
7	feat/figma-phase-d-cli	002 Phase D: Figma in CLI
8	feat/figma-phase-e-drift	002 Phase E: Drift detection
9	feat/phase-3-api-foundation	001 Phase 3: Docker, env, secrets
10	feat/phase-4-api-endpoints	001 Phase 4: Issues, readiness, Jira
11	feat/phase-5-auth-security	001 Phase 5: GitHub App, OIDC, masking
12	feat/figma-phase-f-api	002 Phase F: Figma in API

Review guide

See docs/implementation-log.md for the full implementation log with per-branch summaries, file lists, and diagrams.