docs(plans): refresh roadmap — 7 in-flight PRs incl. T1-5/T7-2/T4-5/T4-7/T5-2/T-P1/CI

[coseto6125]

Summary

Roadmap status snapshot since #286 landed (2026-05-22 morning). Captures:

New in-flight PRs (since #286):

• fix(rename): isolate by owner_class (T1-11) #285 T1-4 + T1-11 — owner_class field + rename isolation (existing, awaiting CI)
• ci: short-circuit heavy jobs for docs-only PRs (no branch-protection deadlock) #287 CI docs-skip — step-level short-circuit, no branch-protection deadlock
• chore(parity): dump SchemaField/EventTopic/TransactionScope from parity scripts (T-P1) #288 T-P1 parity dump (neighbor session) — adds SchemaField/EventTopic/TransactionScope to parity dump scripts
• feat(event-topic): Kafka Python detector (T5-2) #289 T5-2 Kafka Python (neighbor session) — first concrete event-topic detector
• feat(schema-field): protobuf detector (T4-5) #290 T4-5 protobuf — hand-rolled `.proto` lexer, 13 tests
• feat(graph): SchemaField nodes + MirrorsField heuristic edges (T4-7) #291 T4-7 MirrorsField + SchemaFieldIndex — promotes RawSchemaField → graph nodes; fixes pre-T4-7 dangling-pool bug via Box refactor
• feat(graph): per-symbol content_hash via xxh3_64 (T7-2) #292 T7-2 per-symbol content_hash — 14-lang xxh3-64 hashing, GRAPH_FORMAT_VERSION 5→7 (leapfrogs fix(rename): isolate by owner_class (T1-11) #285's v6)
• feat(graph): T1-5 — switch Node.uid from StrRef to u64 (xxh3-64) #293 T1-5 Node.uid u64 — stacked on fix(rename): isolate by owner_class (T1-11) #285, also bumps to v7

Newly shipped since #286:

• feat(cli): FQN-aware targeting + display in inspect/impact (T1-8/T1-9) #284 T1-8 + T1-9 FQN inspect/impact — landed with edge-walk owner resolution (collapses to O(1) field read after fix(rename): isolate by owner_class (T1-11) #285+feat(graph): T1-5 — switch Node.uid from StrRef to u64 (xxh3-64) #293 land)

Highlights

• GRAPH_FORMAT_VERSION race: 3 PRs all bump from v5 (fix(rename): isolate by owner_class (T1-11) #285→v6, feat(graph): per-symbol content_hash via xxh3_64 (T7-2) #292→v7, feat(graph): T1-5 — switch Node.uid from StrRef to u64 (xxh3-64) #293→v7 via stack). T1-7's rollback-safety audit applies at every intermediate version on the 5 → final path.
• fix(rename): isolate by owner_class (T1-11) #285 + feat(graph): T1-5 — switch Node.uid from StrRef to u64 (xxh3-64) #293 are stacked: `fix/t1-11-rename-owner-class` branch carries both T1-4+T1-11 + T1-5. When fix(rename): isolate by owner_class (T1-11) #285 merges, T1-5 lands together.
• T4-7 closes the dead-data gap: T4-2/T4-3/T4-4 detectors silently discarded their output because RawSchemaField used StrRef interned into a per-file pool that the parser dropped. feat(graph): SchemaField nodes + MirrorsField heuristic edges (T4-7) #291 fixes both the plumbing (refactor to Box) and the missing builder pass (SchemaField nodes + MirrorsField heuristic edges).
• Parallel session split: primary session owns fix(rename): isolate by owner_class (T1-11) #285/ci: short-circuit heavy jobs for docs-only PRs (no branch-protection deadlock) #287/feat(schema-field): protobuf detector (T4-5) #290/feat(graph): SchemaField nodes + MirrorsField heuristic edges (T4-7) #291/feat(graph): per-symbol content_hash via xxh3_64 (T7-2) #292/feat(graph): T1-5 — switch Node.uid from StrRef to u64 (xxh3-64) #293; neighbor owns chore(parity): dump SchemaField/EventTopic/TransactionScope from parity scripts (T-P1) #288/feat(event-topic): Kafka Python detector (T5-2) #289/T7-4. T7-4 + feat(graph): per-symbol content_hash via xxh3_64 (T7-2) #292 both touch the incremental indexing path — coordinate when both ship.

Test plan

• Diff renders cleanly on GitHub (status table + highlights)
• All cited PR numbers exist + match the named work
• CI short-circuits on this PR via ci: short-circuit heavy jobs for docs-only PRs (no branch-protection deadlock) #287 (once ci: short-circuit heavy jobs for docs-only PRs (no branch-protection deadlock) #287 lands; until then, full CI cycle runs)