miki-rebase-reflectlisted

# miki-rebase-reflect ## What this does 1. **Rebase** the current branch onto the latest default branch (`main` / `master`), resolving conflicts in-place: mechanical fixes directly, judgment calls escalated to the user. Hand off only on unexpected git state, not on conflicts. 2. **Reflect** on what landed in the default branch since this branch forked — nature of the changes plus which incoming files intersect this branch's diff. Symbol-level cross-referencing and concrete edit recommendations stay out of scope — those belong in the follow-up turn with full repo context. ## Preconditions Verify in order; stop and report on first failure: 1. **No rebase / merge / cherry-pick in progress** — no `.git/rebase-merge`, `.git/rebase-apply`, `.git/MERGE_HEAD`, or `.git/CHERRY_PICK_HEAD`. If one exists, tell the user to finish or abort it first (this is the kind of state we hand off, not touch). 2. **Not on the default branch.** 3. **Clean working tree** (`git status --porcelain` empty). 4. **Default branch identified.** Try `git symbolic-ref refs/remotes/origin/HEAD`, then `git remote show origin | sed -n 's/^.*HEAD branch: //p'`. If both fail or disagree, ask the user. ## Rebase phase Always rebase (never merge — merge cases are human judgment calls). 1. Capture fork point before fetching: `git merge-base HEAD origin/<default>`. Save the SHA. 2. `git fetch origin <default>`. 3. List incoming: `git log --oneline <fork-point>..origin/<default>