[AZ-503] [AZ-504] cycle 5 new-task: tile identity + perf-script-fix

- AZ-503 (3 SP, epic AZ-483) — Tile identity → UUIDv5 deterministic id;
  integer-only UPSERT with COALESCE(flight_id) per-flight separation;
  content_sha256 column; POST /api/satellite/tiles/inventory bulk-list
  endpoint; HTTP/2 at Kestrel edge. Cross-workspace handoff from
  gps-denied-onboard (AZ-304 / AZ-316 counterpart). Supersedes the
  AZ-484 UPSERT-conflict-key portion.

- AZ-504 (1 SP, epic AZ-483) — Fix scripts/run-performance-tests.sh
  lines 416-417: grep -o | wc -l + set -o pipefail kills PT-08 when
  rejected=0. Closes the replay obligation for the cycle-3 perf-harness
  leftover (leftover deletion gated on green full perf run, AC-4).

Updates _dependencies_table.md with cycle 5 entries and records
replay attempt #4 against the perf-cycle3 leftover (PBI opened —
leftover still stays until AZ-504 lands and full perf run is green).

State advanced to Step 10 (Implement).

Co-authored-by: Cursor <cursoragent@cursor.com>

_docs/_autodev_state.md

@@ -2,9 +2,9 @@
 
 ## Current Step
 flow: existing-code
-step: 9
-name: New Task
-status: not_started
+step: 10
+name: Implement
+status: in_progress
 sub_step:
   phase: 0
   name: awaiting-invocation