fix(framework/tools): wrapper hardening — TLS validation, cred-path fallback, no-CI fast-exit (#550)

F-03: validate TLS by default. New _mosaic_tls_opt helper in _lib/credentials.sh
returns -k only for private-network IP literals (trusted LAN) or an explicit
MOSAIC_INSECURE_TLS opt-in; generic mosaic_http/_post/_patch helpers now use
`curl -sS $_tls` instead of `curl -sk`. Woodpecker scripts (_lib.sh,
pipeline-status/list/trigger.sh) talk only to the two public/valid CI hosts, so
`-sk` is changed to `-sS` (straight -k removal, no helper).

F-02: credentials.sh resolves MOSAIC_CREDENTIALS_FILE via a fallback chain —
env first, then ~/.config/mosaic/credentials.json, then the legacy
~/src/jarvis-brain/credentials.json retained as final fallback so the running
fleet keeps working.

F-06: pr-ci-wait.sh distinguishes a genuine no-CI condition (empty state AND no
statuses) as a new `no-status` state and fast-exits 0 after 3 consecutive empty
polls with a clear "no CI configured" message. Repos that DO have pipelines are
unaffected — any pipeline signal resets the streak and pending still waits.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Kt2D8TsnDwhtzEAPijsNmR

packages/mosaic/framework/tools/git/pr-ci-wait.sh

@@ -72,6 +72,11 @@ elif values and all(v == "success" for v in values):
     print("success")
 elif any(v in {"pending", "running", "queued", "waiting"} for v in values):
     print("pending")
+elif not values and not state:
+    # No pipeline/status of any kind reported for this commit. Distinct from
+    # "unknown" (an ambiguous/unrecognized status that should keep polling):
+    # this signals a repo/commit that simply has no CI configured.
+    print("no-status")
 else:
     print("unknown")
 PY
@@ -245,6 +250,13 @@ else
     exit 1
 fi
 
+# Count consecutive polls that find NO pipeline/status at all. A repo/commit with
+# no CI configured (e.g. device-imaging class) would otherwise burn the full
+# timeout in the pending/unknown branch. After NO_CI_MAX such polls, fast-exit 0
+# with a clear "no CI configured" message — distinct from a real failure.
+NO_CI_STREAK=0
+NO_CI_MAX=3
+
 while true; do
     NOW_TS=$(date +%s)
     if (( NOW_TS > DEADLINE_TS )); then
@@ -272,11 +284,24 @@ while true; do
             echo "Error: CI reported ${STATE} for PR #$PR_NUMBER." >&2
             exit 1
             ;;
+        no-status)
+            NO_CI_STREAK=$((NO_CI_STREAK + 1))
+            if (( NO_CI_STREAK >= NO_CI_MAX )); then
+                echo "[INFO] no CI configured for this repo/commit (PR #$PR_NUMBER, ${NO_CI_STREAK} consecutive empty polls); treating as green."
+                exit 0
+            fi
+            sleep "$INTERVAL_SEC"
+            ;;
         pending|unknown)
+            # A pipeline exists but hasn't reached a terminal state (or is
+            # transiently ambiguous) — keep waiting, and reset the no-CI streak
+            # since this commit is not in the "no CI at all" condition.
+            NO_CI_STREAK=0
             sleep "$INTERVAL_SEC"
             ;;
         *)
             echo "[pr-ci-wait] Unrecognized state '${STATE}', continuing to poll..."
+            NO_CI_STREAK=0
             sleep "$INTERVAL_SEC"
             ;;
     esac