Address PR #13 review: 18 comments across M0-M3g specs

M0: economy organ stores local memory ledger; M6 supervises M5
directly, M7 is independent antivirus/guarddog alerting M6 via
Ichor; Ada dependency reframed to economy scope; build sequence
changed to subcomponent-first with ablative tests.

M1: submit_action returns {succeeded|failed}, diagnostics internal
to Conductor; stubs now print "if finished, would respond with..."
for debugging; law script changes require operator + Homunculus
signatures; law script format added as open item.

M2: removed Python/Rust from language options; confidence scale
changed to [0.0, 10.0] per position.

M3 hub: normalized all time horizons to ~40s wall time windows;
confidence scale 0.00-10.00 with "X.XX/10.00" print format; gain
rates as "low - mid - high / 10.00"; removed Python from language
list across all sub-specs (M3a-M3g).

M3a: Julia/R/Fortran/Octave replaces Python; fBM citation added
(Hosking 1984, Wood & Chan 1994); confidence/correctness/certainty
distinguished as 3 separate metrics; models span multiple horizons.

M3b: models span multiple horizons note added; Mesa/Python removed.
M3c: Solidity for on-chain precision; Julia/Octave for analytics.
M3d-M3g: Python removed; confidence values updated to 10.0 scale.

core/docs/plans/M2-data-feeds.md

@@ -11,7 +11,7 @@ DESIGN-FIRST · ABSENT. Role C3; implementation C1.
 
 ## 3. Language & location
 TBD · `src/economy/feeds/`. Needs async I/O for streaming data (WebSockets, SSE, RSS polling).
-Pony actors are a natural fit (async, backpressure-aware). Python or Rust for API client libs.
+Pony actors are a natural fit (async, backpressure-aware).
 
 ## 4. Does / does-not
 - **Does:** ingest live market data from external sources (RSS, price APIs, DEX subgraphs,
@@ -30,8 +30,8 @@ Pony actors are a natural fit (async, backpressure-aware). Python or Rust for AP
 - `query_history(feed_type, time_range) -> [NormalizedDatum]` — sims and traders can pull
   historical data within the session window.
 - `NormalizedDatum { feed_type, source, timestamp, payload, confidence }` — common shape.
-  `confidence` ∈ [0.0, 1.0] — data source reliability (exchange-reported price = high; RSS
-  sentiment = lower).
+  `confidence` ∈ [0.0, 10.0] — data source reliability per position produced (exchange-reported
+  price = high; RSS sentiment = lower). Sims produce even finer-grained confidence.
 
 ## 6. Dependencies & stubs
 - External data sources (price APIs, RSS, RPC nodes) — *stub:* canned market data replay.